The required file list is maintained in required_files.txt
which is parsed to find a list of filenames. The script
searches for these filenames in the sdk folder, and copy
then into the yotta module with folder structure intact.
extraIncludes is automatically added to module.json
This requires changing of nordic source but do away with
magic defines in parent modules
note on #define asm __ASM
all yotta mobule compile with -std=c99 which does not
include "asm" keyword.
LIYOU ZHOU