Build: Move SPM HAL sources to tfm_spm

tfm_spm and platform_s has a cyclic link relationship as these SPM HAL
sources in platform_s target require tfm_spm. Moving them into tfm_spm
can remove the cyclic dependency, and tfm_utilities is unnecessary any
more as tfm_spm include directories can cover the HAL sources header
file requirement.

Signed-off-by: Jianliang Shen <jianliang.shen@arm.com>
Change-Id: Iea780bd6e6a8187357a4404f541abdd2214c788f
29 files changed