refactor(msm8916): separate common platform setup code

In preparation of adding BL32 support for the msm8916 platform
(AArch32/SP_MIN and TSP), separate the common platform setup code into
shared msm8916_setup.c and msm8916_config.c files which can be called
from both BL31 and BL32.

msm8916_setup.c contains the relevant shared code for BL31/SP_MIN/TSP,
while msm8916_config.c is cold boot configuration code that is only
relevant for BL31 and SP_MIN (but not TSP).

No functional change.

Change-Id: I055522d5ad8c03dfb8e09236dc47dd383a480e95
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
8 files changed