The compile defintions should always be added depending on the
selected toolchain.
mbed_set_toolchain_options() should only be called if a third-party
toolchain file has not been used as it has compile options that can
cause conflicts.
As the assembler does not seem to recognise the request to the
linker to use microlib, remove that instruction.
Microlib is still used as the linker selects microlib as a result
of being explicitly asked to do so.
- Add linker option to generate map file for GCC_ARM and ARM toolchain
- Add mbed_generate_map_file function to call memap.py (parse the map
file).
- Add mbed_generate_executable function to generate executable artifacts with a memory map table