stm32_common/spi: fix receive after transmit-only error
stm32_common/spi: fix receive after transmit-only error

aeneby/RIOT,authmillenon/RIOT,kYc0o/RIOT,thomaseichinger/RIOT,roberthartung/RIOT,dailab/RIOT,adrianghc/RIOT,basilfx/RIOT,OTAkeys/RIOT,plushvoxel/RIOT,beurdouche/RIOT,neiljay/RIOT,Josar/RIOT,miri64/RIOT,syin2/RIOT,mtausig/RIOT,LudwigOrtmann/RIOT,thomaseichinger/RIOT,ant9000/RIOT,rfuentess/RIOT,adrianghc/RIOT,kaspar030/RIOT,neiljay/RIOT,hamilton-mote/RIOT-OS,kYc0o/RIOT,dailab/RIOT,yogo1212/RIOT,adjih/RIOT,kaleb-himes/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,gautric/RIOT,x3ro/RIOT,Josar/RIOT,mfrey/RIOT,authmillenon/RIOT,miri64/RIOT,aeneby/RIOT,syin2/RIOT,mtausig/RIOT,BytesGalore/RIOT,yogo1212/RIOT,avmelnikoff/RIOT,TobiasFredersdorf/RIOT,LudwigOrtmann/RIOT,ant9000/RIOT,neiljay/RIOT,syin2/RIOT,OTAkeys/RIOT,mfrey/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,lazytech-org/RIOT,biboc/RIOT,yogo1212/RIOT,Ell-i/RIOT,basilfx/RIOT,cladmi/RIOT,kaspar030/RIOT,miri64/RIOT,biboc/RIOT,basilfx/RIOT,x3ro/RIOT,gebart/RIOT,immesys/RiSyn,Ell-i/RIOT,Hyungsin/RIOT-OS,lazytech-org/RIOT,toonst/RIOT,jfischer-phytec-iot/RIOT,roberthartung/RIOT,gautric/RIOT,ant9000/RIOT,Ell-i/RIOT,kaspar030/RIOT,josephnoir/RIOT,beurdouche/RIOT,RIOT-OS/RIOT,LudwigKnuepfer/RIOT,thomaseichinger/RIOT,kbumsik/RIOT,avmelnikoff/RIOT,neumodisch/RIOT,kbumsik/RIOT,lazytech-org/RIOT,yogo1212/RIOT,gebart/RIOT,biboc/RIOT,aeneby/RIOT,smlng/RIOT,rfuentess/RIOT,TobiasFredersdorf/RIOT,roberthartung/RIOT,dkm/RIOT,LudwigOrtmann/RIOT,ks156/RIOT,OlegHahm/RIOT,adrianghc/RIOT,rfuentess/RIOT,OlegHahm/RIOT,roberthartung/RIOT,OlegHahm/RIOT,mfrey/RIOT,gautric/RIOT,adjih/RIOT,adrianghc/RIOT,aeneby/RIOT,kaspar030/RIOT,BytesGalore/RIOT,miri64/RIOT,avmelnikoff/RIOT,adjih/RIOT,RIOT-OS/RIOT,ks156/RIOT,LudwigKnuepfer/RIOT,smlng/RIOT,gautric/RIOT,neumodisch/RIOT,mtausig/RIOT,A-Paul/RIOT,immesys/RiSyn,rfuentess/RIOT,kerneltask/RIOT,Hyungsin/RIOT-OS,BytesGalore/RIOT,beurdouche/RIOT,LudwigOrtmann/RIOT,BytesGalore/RIOT,dailab/RIOT,syin2/RIOT,gautric/RIOT,A-Paul/RIOT,immesys/RiSyn,TobiasFredersdorf/RIOT,TobiasFredersdorf/RIOT,plushvoxel/RIOT,jfischer-phytec-iot/RIOT,OlegHahm/RIOT,RIOT-OS/RIOT,mtausig/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,yogo1212/RIOT,OTAkeys/RIOT,neiljay/RIOT,hamilton-mote/RIOT-OS,foss-for-synopsys-dwc-arc-processors/RIOT,jasonatran/RIOT,x3ro/RIOT,smlng/RIOT,LudwigKnuepfer/RIOT,OTAkeys/RIOT,avmelnikoff/RIOT,beurdouche/RIOT,neumodisch/RIOT,rfuentess/RIOT,cladmi/RIOT,kbumsik/RIOT,thomaseichinger/RIOT,Hyungsin/RIOT-OS,kbumsik/RIOT,josephnoir/RIOT,biboc/RIOT,avmelnikoff/RIOT,mfrey/RIOT,neumodisch/RIOT,ant9000/RIOT,hamilton-mote/RIOT-OS,lazytech-org/RIOT,basilfx/RIOT,neiljay/RIOT,Josar/RIOT,thomaseichinger/RIOT,immesys/RiSyn,LudwigKnuepfer/RIOT,aeneby/RIOT,josephnoir/RIOT,beurdouche/RIOT,authmillenon/RIOT,Josar/RIOT,jasonatran/RIOT,neumodisch/RIOT,toonst/RIOT,ks156/RIOT,RIOT-OS/RIOT,jasonatran/RIOT,Ell-i/RIOT,roberthartung/RIOT,TobiasFredersdorf/RIOT,cladmi/RIOT,miri64/RIOT,jasonatran/RIOT,x3ro/RIOT,dkm/RIOT,mtausig/RIOT,OTAkeys/RIOT,smlng/RIOT,hamilton-mote/RIOT-OS,kYc0o/RIOT,gebart/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,josephnoir/RIOT,adrianghc/RIOT,syin2/RIOT,Hyungsin/RIOT-OS,A-Paul/RIOT,OlegHahm/RIOT,LudwigOrtmann/RIOT,Ell-i/RIOT,toonst/RIOT,gebart/RIOT,plushvoxel/RIOT,jasonatran/RIOT,Hyungsin/RIOT-OS,LudwigOrtmann/RIOT,jfischer-phytec-iot/RIOT,plushvoxel/RIOT,dailab/RIOT,jfischer-phytec-iot/RIOT,A-Paul/RIOT,dkm/RIOT,neumodisch/RIOT,kYc0o/RIOT,kaleb-himes/RIOT,ks156/RIOT,dailab/RIOT,toonst/RIOT,Josar/RIOT,authmillenon/RIOT,basilfx/RIOT,kerneltask/RIOT,authmillenon/RIOT,kaleb-himes/RIOT,A-Paul/RIOT,plushvoxel/RIOT,kaleb-himes/RIOT,kaleb-himes/RIOT,ks156/RIOT,biboc/RIOT,kerneltask/RIOT,immesys/RiSyn,gebart/RIOT,immesys/RiSyn,dkm/RIOT,josephnoir/RIOT,kYc0o/RIOT,RIOT-OS/RIOT,kaspar030/RIOT,kerneltask/RIOT,adjih/RIOT,authmillenon/RIOT,toonst/RIOT,x3ro/RIOT,jfischer-phytec-iot/RIOT,kbumsik/RIOT,hamilton-mote/RIOT-OS,kerneltask/RIOT,dkm/RIOT,lazytech-org/RIOT,smlng/RIOT,LudwigKnuepfer/RIOT,cladmi/RIOT,yogo1212/RIOT,BytesGalore/RIOT,cladmi/RIOT,mfrey/RIOT,ant9000/RIOT,adjih/RIOT