feat(mediatek): add APU bootup control smc call

Add APU bootup control smc call.
The steps of bootup flow:
  1. set up APU config.
  2. reset APU.
  3. set up APU boot config.
  4. boot APU.

Change-Id: I9e930070a64c7c4dcaa3a8b3d28b897823e9f53c
5 files changed