src/x86/up.c: get i2c numbering from pci information instead of hardcoding it
src/x86/up.c: get i2c numbering from pci information instead of hardcoding it

Signed-off-by: Nicola Lunghi <4828aa2f171daefde723b3eaeea1dd38094b115f@emutex.com>
Signed-off-by: Brendan Le Foll <3e0e8c4069934e8b47d99704927a85c66c0ceb33@intel.com>

KurtE/mraa,intel-iot-devkit/mraa,stefan-andritoiu/mraa,malikabhi05/mraa,arfoll/mraa,sergev/mraa,g-vidal/mraa,g-vidal/mraa,alext-mkrs/mraa,yongli3/mraa,Propanu/mraa,yongli3/mraa,sergev/mraa,malikabhi05/mraa,stefan-andritoiu/mraa,intel-iot-devkit/mraa,stefan-andritoiu/mraa,sergev/mraa,KurtE/mraa,arfoll/mraa,yongli3/mraa,Propanu/mraa,yongli3/mraa,malikabhi05/mraa,arfoll/mraa,KurtE/mraa,arfoll/mraa,Propanu/mraa,sergev/mraa,malikabhi05/mraa,alext-mkrs/mraa,sergev/mraa,arfoll/mraa,g-vidal/mraa,malikabhi05/mraa,Propanu/mraa,stefan-andritoiu/mraa,intel-iot-devkit/mraa,alext-mkrs/mraa,intel-iot-devkit/mraa,g-vidal/mraa,intel-iot-devkit/mraa,g-vidal/mraa,yongli3/mraa,alext-mkrs/mraa,stefan-andritoiu/mraa,alext-mkrs/mraa,Propanu/mraa,KurtE/mraa,KurtE/mraa