bloom: fix calloc invocation
bloom: fix calloc invocation

Fix array member type (`char` vs `uint8_t`).

Found via scan-build.

toonst/RIOT,rousselk/RIOT,shady33/RIOT,dhruvvyas90/RIOT,rakendrathapa/RIOT,attdona/RIOT,stevenj/RIOT,binarylemon/RIOT,toonst/RIOT,josephnoir/RIOT,adrianghc/RIOT,zhuoshuguo/RIOT,Yonezawa-T2/RIOT,ks156/RIOT,BytesGalore/RIOT,biboc/RIOT,latsku/RIOT,watr-li/RIOT,immesys/RiSyn,LudwigOrtmann/RIOT,malosek/RIOT,MonsterCode8000/RIOT,roberthartung/RIOT,rousselk/RIOT,stevenj/RIOT,kaleb-himes/RIOT,brettswann/RIOT,mziegert/RIOT,tfar/RIOT,malosek/RIOT,RBartz/RIOT,kbumsik/RIOT,abkam07/RIOT,Ell-i/RIOT,RBartz/RIOT,Yonezawa-T2/RIOT,Ell-i/RIOT,aeneby/RIOT,aeneby/RIOT,ks156/RIOT,syin2/RIOT,jasonatran/RIOT,wentaoshang/RIOT,abkam07/RIOT,stevenj/RIOT,basilfx/RIOT,msolters/RIOT,jfischer-phytec-iot/RIOT,daniel-k/RIOT,d00616/RIOT,zhuoshuguo/RIOT,alignan/RIOT,jasonatran/RIOT,mfrey/RIOT,mziegert/RIOT,tfar/RIOT,adrianghc/RIOT,RBartz/RIOT,beurdouche/RIOT,jfischer-phytec-iot/RIOT,tfar/RIOT,kaleb-himes/RIOT,wentaoshang/RIOT,kerneltask/RIOT,kYc0o/RIOT,watr-li/RIOT,mtausig/RIOT,lebrush/RIOT,daniel-k/RIOT,FrancescoErmini/RIOT,jasonatran/RIOT,asanka-code/RIOT,immesys/RiSyn,Josar/RIOT,MohmadAyman/RIOT,authmillenon/RIOT,A-Paul/RIOT,adjih/RIOT,rfuentess/RIOT,binarylemon/RIOT,l3nko/RIOT,kerneltask/RIOT,kYc0o/RIOT,authmillenon/RIOT,beurdouche/RIOT,kbumsik/RIOT,haoyangyu/RIOT,JensErdmann/RIOT,dailab/RIOT,Hyungsin/RIOT-OS,d00616/RIOT,gebart/RIOT,gautric/RIOT,abkam07/RIOT,rousselk/RIOT,latsku/RIOT,dkm/RIOT,neumodisch/RIOT,zhuoshuguo/RIOT,jfischer-phytec-iot/RIOT,haoyangyu/RIOT,rajma996/RIOT,thomaseichinger/RIOT,basilfx/RIOT,jasonatran/RIOT,adjih/RIOT,dkm/RIOT,brettswann/RIOT,LudwigKnuepfer/RIOT,kaleb-himes/RIOT,binarylemon/RIOT,khhhh/RIOT,MohmadAyman/RIOT,roberthartung/RIOT,kaspar030/RIOT,backenklee/RIOT,yogo1212/RIOT,kaleb-himes/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,beurdouche/RIOT,shady33/RIOT,smlng/RIOT,RubikonAlpha/RIOT,brettswann/RIOT,biboc/RIOT,stevenj/RIOT,thomaseichinger/RIOT,aeneby/RIOT,kb2ma/RIOT,miri64/RIOT,JensErdmann/RIOT,thomaseichinger/RIOT,avmelnikoff/RIOT,Josar/RIOT,syin2/RIOT,OTAkeys/RIOT,jfischer-phytec-iot/RIOT,khhhh/RIOT,daniel-k/RIOT,altairpearl/RIOT,gautric/RIOT,altairpearl/RIOT,MonsterCode8000/RIOT,basilfx/RIOT,rfuentess/RIOT,Josar/RIOT,watr-li/RIOT,beurdouche/RIOT,asanka-code/RIOT,basilfx/RIOT,malosek/RIOT,ant9000/RIOT,abp719/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,rfuentess/RIOT,zhuoshuguo/RIOT,jbeyerstedt/RIOT-OTA-update,binarylemon/RIOT,mziegert/RIOT,lebrush/RIOT,plushvoxel/RIOT,abkam07/RIOT,LudwigOrtmann/RIOT,BytesGalore/RIOT,RIOT-OS/RIOT,adjih/RIOT,latsku/RIOT,Yonezawa-T2/RIOT,gautric/RIOT,A-Paul/RIOT,rakendrathapa/RIOT,A-Paul/RIOT,authmillenon/RIOT,asanka-code/RIOT,x3ro/RIOT,backenklee/RIOT,abp719/RIOT,x3ro/RIOT,RIOT-OS/RIOT,toonst/RIOT,cladmi/RIOT,RubikonAlpha/RIOT,TobiasFredersdorf/RIOT,immesys/RiSyn,mziegert/RIOT,hamilton-mote/RIOT-OS,biboc/RIOT,abp719/RIOT,altairpearl/RIOT,avmelnikoff/RIOT,latsku/RIOT,dhruvvyas90/RIOT,OlegHahm/RIOT,miri64/RIOT,rfuentess/RIOT,immesys/RiSyn,mfrey/RIOT,roberthartung/RIOT,mziegert/RIOT,altairpearl/RIOT,avmelnikoff/RIOT,yogo1212/RIOT,watr-li/RIOT,ant9000/RIOT,attdona/RIOT,kaspar030/RIOT,katezilla/RIOT,gebart/RIOT,RubikonAlpha/RIOT,backenklee/RIOT,Ell-i/RIOT,LudwigKnuepfer/RIOT,jremmert-phytec-iot/RIOT,l3nko/RIOT,kYc0o/RIOT,lazytech-org/RIOT,watr-li/RIOT,d00616/RIOT,OlegHahm/RIOT,d00616/RIOT,OlegHahm/RIOT,alignan/RIOT,kaspar030/RIOT,stevenj/RIOT,dailab/RIOT,RubikonAlpha/RIOT,mtausig/RIOT,neiljay/RIOT,plushvoxel/RIOT,hamilton-mote/RIOT-OS,dhruvvyas90/RIOT,herrfz/RIOT,dailab/RIOT,mfrey/RIOT,backenklee/RIOT,thomaseichinger/RIOT,khhhh/RIOT,kerneltask/RIOT,abkam07/RIOT,miri64/RIOT,herrfz/RIOT,beurdouche/RIOT,miri64/RIOT,rousselk/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,katezilla/RIOT,attdona/RIOT,binarylemon/RIOT,msolters/RIOT,jbeyerstedt/RIOT-OTA-update,lazytech-org/RIOT,toonst/RIOT,x3ro/RIOT,jbeyerstedt/RIOT-OTA-update,biboc/RIOT,MonsterCode8000/RIOT,cladmi/RIOT,asanka-code/RIOT,TobiasFredersdorf/RIOT,TobiasFredersdorf/RIOT,rajma996/RIOT,rousselk/RIOT,jremmert-phytec-iot/RIOT,A-Paul/RIOT,syin2/RIOT,cladmi/RIOT,jremmert-phytec-iot/RIOT,FrancescoErmini/RIOT,jremmert-phytec-iot/RIOT,katezilla/RIOT,Yonezawa-T2/RIOT,kYc0o/RIOT,rakendrathapa/RIOT,l3nko/RIOT,msolters/RIOT,rajma996/RIOT,TobiasFredersdorf/RIOT,altairpearl/RIOT,lazytech-org/RIOT,OTAkeys/RIOT,plushvoxel/RIOT,josephnoir/RIOT,stevenj/RIOT,kYc0o/RIOT,alignan/RIOT,hamilton-mote/RIOT-OS,yogo1212/RIOT,neiljay/RIOT,neumodisch/RIOT,authmillenon/RIOT,lebrush/RIOT,MohmadAyman/RIOT,neumodisch/RIOT,kaspar030/RIOT,kerneltask/RIOT,msolters/RIOT,herrfz/RIOT,brettswann/RIOT,jremmert-phytec-iot/RIOT,dhruvvyas90/RIOT,OTAkeys/RIOT,rajma996/RIOT,rakendrathapa/RIOT,kb2ma/RIOT,kbumsik/RIOT,Hyungsin/RIOT-OS,RubikonAlpha/RIOT,hamilton-mote/RIOT-OS,neumodisch/RIOT,authmillenon/RIOT,FrancescoErmini/RIOT,wentaoshang/RIOT,syin2/RIOT,shady33/RIOT,malosek/RIOT,malosek/RIOT,adrianghc/RIOT,dkm/RIOT,haoyangyu/RIOT,RIOT-OS/RIOT,gautric/RIOT,tfar/RIOT,adrianghc/RIOT,kbumsik/RIOT,RBartz/RIOT,thomaseichinger/RIOT,roberthartung/RIOT,JensErdmann/RIOT,l3nko/RIOT,l3nko/RIOT,khhhh/RIOT,MonsterCode8000/RIOT,daniel-k/RIOT,yogo1212/RIOT,zhuoshuguo/RIOT,ks156/RIOT,lebrush/RIOT,binarylemon/RIOT,RBartz/RIOT,kb2ma/RIOT,lebrush/RIOT,OTAkeys/RIOT,kbumsik/RIOT,jbeyerstedt/RIOT-OTA-update,foss-for-synopsys-dwc-arc-processors/RIOT,jfischer-phytec-iot/RIOT,Josar/RIOT,Yonezawa-T2/RIOT,attdona/RIOT,BytesGalore/RIOT,herrfz/RIOT,JensErdmann/RIOT,jasonatran/RIOT,immesys/RiSyn,neiljay/RIOT,hamilton-mote/RIOT-OS,OlegHahm/RIOT,d00616/RIOT,Ell-i/RIOT,adjih/RIOT,smlng/RIOT,kb2ma/RIOT,neumodisch/RIOT,Hyungsin/RIOT-OS,cladmi/RIOT,haoyangyu/RIOT,Hyungsin/RIOT-OS,avmelnikoff/RIOT,brettswann/RIOT,shady33/RIOT,RIOT-OS/RIOT,x3ro/RIOT,ks156/RIOT,gebart/RIOT,MonsterCode8000/RIOT,syin2/RIOT,malosek/RIOT,gebart/RIOT,josephnoir/RIOT,LudwigOrtmann/RIOT,MohmadAyman/RIOT,watr-li/RIOT,dhruvvyas90/RIOT,x3ro/RIOT,RBartz/RIOT,dhruvvyas90/RIOT,asanka-code/RIOT,biboc/RIOT,haoyangyu/RIOT,adjih/RIOT,attdona/RIOT,BytesGalore/RIOT,MohmadAyman/RIOT,MonsterCode8000/RIOT,mtausig/RIOT,mtausig/RIOT,asanka-code/RIOT,LudwigOrtmann/RIOT,ant9000/RIOT,FrancescoErmini/RIOT,jremmert-phytec-iot/RIOT,zhuoshuguo/RIOT,wentaoshang/RIOT,wentaoshang/RIOT,daniel-k/RIOT,FrancescoErmini/RIOT,herrfz/RIOT,Yonezawa-T2/RIOT,lazytech-org/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,katezilla/RIOT,josephnoir/RIOT,d00616/RIOT,attdona/RIOT,neumodisch/RIOT,OlegHahm/RIOT,rakendrathapa/RIOT,FrancescoErmini/RIOT,LudwigKnuepfer/RIOT,avmelnikoff/RIOT,MohmadAyman/RIOT,msolters/RIOT,l3nko/RIOT,authmillenon/RIOT,smlng/RIOT,LudwigOrtmann/RIOT,kerneltask/RIOT,shady33/RIOT,RubikonAlpha/RIOT,yogo1212/RIOT,alignan/RIOT,adrianghc/RIOT,plushvoxel/RIOT,backenklee/RIOT,wentaoshang/RIOT,Hyungsin/RIOT-OS,miri64/RIOT,mziegert/RIOT,dkm/RIOT,rousselk/RIOT,rfuentess/RIOT,plushvoxel/RIOT,altairpearl/RIOT,neiljay/RIOT,OTAkeys/RIOT,dkm/RIOT,abp719/RIOT,msolters/RIOT,lebrush/RIOT,abkam07/RIOT,Ell-i/RIOT,rajma996/RIOT,herrfz/RIOT,immesys/RiSyn,smlng/RIOT,khhhh/RIOT,kb2ma/RIOT,dailab/RIOT,josephnoir/RIOT,mfrey/RIOT,Josar/RIOT,neiljay/RIOT,shady33/RIOT,A-Paul/RIOT,kaleb-himes/RIOT,RIOT-OS/RIOT,ant9000/RIOT,LudwigOrtmann/RIOT,mtausig/RIOT,katezilla/RIOT,JensErdmann/RIOT,yogo1212/RIOT,basilfx/RIOT,latsku/RIOT,rajma996/RIOT,LudwigKnuepfer/RIOT,gautric/RIOT,roberthartung/RIOT,toonst/RIOT,jbeyerstedt/RIOT-OTA-update,BytesGalore/RIOT,abp719/RIOT,aeneby/RIOT,tfar/RIOT,lazytech-org/RIOT,alignan/RIOT,dailab/RIOT,cladmi/RIOT,ks156/RIOT,abp719/RIOT,gebart/RIOT,latsku/RIOT,mfrey/RIOT,haoyangyu/RIOT,brettswann/RIOT,daniel-k/RIOT,aeneby/RIOT,TobiasFredersdorf/RIOT,smlng/RIOT,khhhh/RIOT,LudwigKnuepfer/RIOT,rakendrathapa/RIOT,ant9000/RIOT,JensErdmann/RIOT,kaspar030/RIOT