ftdi_ft4222.c: Implemented previously stubbed out i2c functions.
ftdi_ft4222.c: Implemented previously stubbed out i2c functions.

Signed-off-by: Henry Bruce <57ea958cad66de244404958c9a01f7a4ad51b29e@intel.com>
Signed-off-by: Brendan Le Foll <3e0e8c4069934e8b47d99704927a85c66c0ceb33@intel.com>

malikabhi05/mraa,jontrulson/mraa,alext-mkrs/mraa,whbruce/mraa,stefan-andritoiu/mraa-gpio-chardev,anonymouse64/mraa,malikabhi05/mraa,malikabhi05/mraa,jontrulson/mraa,jontrulson/mraa,alext-mkrs/mraa,arfoll/mraa,yongli3/mraa,Propanu/mraa,g-vidal/mraa,petreeftime/mraa,tripzero/mraa,jontrulson/mraa,Propanu/mraa,Hbrinj/mraa,nioinnovation/mraa,arunlee77/mraa,KurtE/mraa,nioinnovation/mraa,stefan-andritoiu/mraa,ncrastanaren/mraa,arunlee77/mraa,alext-mkrs/mraa,malikabhi05/mraa,jontrulson/mraa,arfoll/mraa,anonymouse64/mraa,arfoll/mraa,Pillar1989/mraa,alext-mkrs/mraa,sergev/mraa,stefan-andritoiu/mraa-gpio-chardev,stefan-andritoiu/mraa-gpio-chardev,tripzero/mraa,g-vidal/mraa,g-vidal/mraa,Jon-ICS/mraa,alext-mkrs/mraa,Jon-ICS/mraa,KurtE/mraa,Pillar1989/mraa,Pillar1989/mraa,intel-iot-devkit/mraa,Hbrinj/mraa,andreivasiliu2211/mraa,KurtE/mraa,stefan-andritoiu/mraa-gpio-chardev,yongli3/mraa,sergev/mraa,spitfire88/mraa,anonymouse64/mraa,w4ilun/mraa,yongli3/mraa,arfoll/mraa,sergev/mraa,intel-iot-devkit/mraa,intel-iot-devkit/mraa,arfoll/mraa,ncrastanaren/mraa,stefan-andritoiu/mraa,yongli3/mraa,sergev/mraa,KurtE/mraa,nioinnovation/mraa,ProfFan/mraa,ncrastanaren/mraa,stefan-andritoiu/mraa,petreeftime/mraa,malikabhi05/mraa,ProfFan/mraa,andreivasiliu2211/mraa,stefan-andritoiu/mraa,petreeftime/mraa,ProfFan/mraa,andreivasiliu2211/mraa,whbruce/mraa,Propanu/mraa,stefan-andritoiu/mraa-gpio-chardev,Propanu/mraa,yongli3/mraa,petreeftime/mraa,andreivasiliu2211/mraa,arunlee77/mraa,arunlee77/mraa,Hbrinj/mraa,w4ilun/mraa,stefan-andritoiu/mraa,intel-iot-devkit/mraa,KurtE/mraa,ProfFan/mraa,intel-iot-devkit/mraa,w4ilun/mraa,Propanu/mraa,Jon-ICS/mraa,ncrastanaren/mraa,g-vidal/mraa,spitfire88/mraa,whbruce/mraa,spitfire88/mraa,ncrastanaren/mraa,spitfire88/mraa,tripzero/mraa,w4ilun/mraa,Hbrinj/mraa,sergev/mraa,whbruce/mraa,g-vidal/mraa