S5: BL30: Reduce the voltage of dos_nn_vpu [1/1]

PD#SWPL-115334

Problem:
1.  vdd_npu_dos_vpu
	In order to be compatible with the ref board V1/V2,
	ignore the failure message of reducing voltage of
	vdd_npu_dos_vpu in standby.
2. vddcpu
	Invalid code logic.

Solution:
Modify the related code.

Verify:
S5

Change-Id: Iab92e96ccd834c6aef9ab2f7d4a0553c5c543a0c
Signed-off-by: binbin.wang <binbin.wang@amlogic.com>
3 files changed