intel_edison_fab_c.c: Enhanced detection of Arduino expansion board
intel_edison_fab_c.c: Enhanced detection of Arduino expansion board

Closes #318.

Signed-off-by: Alex Tereschenko <c1573d8a2714f7b294fae3af1bb5e489479ca966@gmail.com>
Signed-off-by: Brendan Le Foll <3e0e8c4069934e8b47d99704927a85c66c0ceb33@intel.com>

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