Updated LPC43xx isr_map_lld.h
Merge ../ChibiOS-RT into feature/lpc43xx-serial
Updated the isr map.
Started the serial demo code.  No driver yet.
Updated the blinky configuration files.
Moved demo 'serial' to 'uart' and added initial uart stub.
Added untested code to uart driver.  Cleared up many warnings.
This was the 'original' serial driver.  Code is *NOT* for the 'expected' serial driver (possibly a 1-wire or something?).