bl30: add aocpu alive detection mechanism [2/3]

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: I1c392f6e61ffd8ef166ec2b43286ba6d5b1973e5
Signed-off-by: bangzheng.liu <bangzheng.liu@amlogic.com>
1 file changed