Update arm compiler flags which were causing build failures.
Remove `-MMD` flag as it is not recognised by the Arm compiler.
There are no common flags between compiler, assembler and linker. The
compiler expects `-mcpu` whereas assembler and linker expects `--cpu`.
The `COMMON_FLAGS` in `cmake/toolchains/ARM.cmake` are not recognised by
assembler and linker.
Signed-off-by: Devaraj Ranganna <devaraj.ranganna@arm.com>
The version number was required previously when ARM Compiler 5
and ARM Compiler 6 were both supported. There was a significant
underlying change between the two that justified having distinct
build options settinfgs. It is very unlikely that such a major change will happen
between ARM Compiler 6 and future versions. It is therefore also very unlikely
that distinct option settings for future versions will be needed.
We should therefore avoid appending version number the same way we do not
append it to GCC toolchain configuration settings.
Hugues Kamba
Devaraj Ranganna