refactor(mediatek): partition MTK SiP SMC ID

Manage MTK SiP SMC ID with macros for 32/64 bit and
function declaration code generation.
Partition SMC ID with different exception level sources.

Signed-off-by: Leon Chen <leon.chen@mediatek.com>
Change-Id: I8966cd94f0d825e7ebae08833d2bd9fceedfd45e
12 files changed