T3X: PXP Bringup Bootloader BL30 code portinig [2/3]

PD#SWPL-110717

Problem:
T3X PXP Bringup Bootloader BL30.

Solution:
Code porting from T5M, T3 and ucode.
Add T3X skt compile.

Verify:
Test in z1.

Change-Id: I451b143c803c1f03bdfb2ba883b43eef9b104be5
Signed-off-by: bangzheng.liu <bangzheng.liu@amlogic.com>
16 files changed