uart: add a4 uart_ao wakeup function [1/1]

PD#SWPL-118812

Problem:
need add a4 uart_ao wakeup function

Solution:
add a4 uart_ao wakeup function

Verify:
a4_ba400

Change-Id: I9d614530da76b4cfb67b91b7b59e189d615bc6cd
Signed-off-by: Yu Tu <yu.tu@amlogic.com>
3 files changed