Remove the now vestigial <flash/flash.h> header from the tree, replacing a few references with <flash/nor/core.h>
Changes from the flat namespace to heirarchical one. Instead of writing: #include "flash.h" the following form should be used. #include <flash/flash.h> The exception is from .c files in the same directory.
Moves NOR flash drivers to 'src/flash/nor/'. Adds 'src/flash/nor/Makefile.am'. Builds 'libocdflashnor.la'.