sys/posix: Add fcntl.h
sys/posix: Add fcntl.h

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