feat(mt8196): add SPM common driver support

This patch mainly initializes the SPM and provides common APIs for SPM
to enable the use of its various features.

Signed-off-by: Wenzhen Yu <wenzhen.yu@mediatek.com>
Change-Id: I9facb6bf9962bb2d5fcacd945846bfaeb4c87a55
13 files changed