Implement platform specific macros for Intel Arduino101 / Genuino101
board.
Couldn't avoid using inline functions because a GPIO can be managed
by Quark or ARC core and I need to determine at runtime the type of
GPIO to use the specific way of configuring a GPIO:
Just write to a specific address for a Quark managed GPIO
Use and ARC specific assembly to instruction to modify an
auxiliary register.
Signed-off-by: Bogdan Pricop bogdan.pricop@emutex.com