LPC81X: reduce code size and add ARM_GCC support
...
LPC810 has only 4KB of flash, thus avoiding dead code is really nice.
Here the NVIC interrupt setup was pulled from the us_ticker code even
if no code is using timer events.
This also adds ARM_GCC support for TARGET_LPC81X.
LPC81X and LPC82X support Cortex M0+ VTOR register, so it is not
necessary to put non-init text at 0x200.
Cyprien Laplace
committed
on 16 Aug 2015
