SoC s1a : fd650: add bl30 control [1/3]

PD#SWPL-158140

Problem:
need bl30 control via mailbox

Solution:
support it

Verify:
s1a

Change-Id: Ifd5e730d51b8b24c4e043d3ee86699ec2cf73faf
Signed-off-by: Junyi Zhao <junyi.zhao@amlogic.com>
7 files changed