bl30: add aocpu alive detection mechanism [1/3]

PD#SWPL-152941

Problem:
CPU would hang when bl31/bl33/kernel communicate with
bl30/AOCPU that we could not confirm the reason.

Solution:
Add aocpu alive detection mechanism.

Verify:
A5_AV409

Change-Id: I66314c067ccb4fa9cca4f81218b8100cf8a43b24
Signed-off-by: bangzheng.liu <bangzheng.liu@amlogic.com>
2 files changed