SoC s7: suspend debug: support BL30 suspend debug [2/4]

PD#SWPL-158380

Problem:
Add suspend debug function.

Solution:
Add code.

Verify:
s7_bh201

Change-Id: I840a15f052ac0b119d7928505db5c964532b96d8
Signed-off-by: changpeng.jiang <changpeng.jiang@amlogic.com>
1 file changed