cec: switching to arc port one time at least when resume [1/2]

BUG=136978624
Test: manual

Problem:
when Atom stay at ARC inpt before standby, it maybe not switch to
ArcInputService one time, it will lead to no sound

Solution:
switching to arc port one time at least when resume and cec messages
coming

Verify:
test ok using atom

Change-Id: I236ae9c36b12ffc2bed6aa8400bdadc3c0fc01ae
Signed-off-by: Jinping Wang <jinping.wang@amlogic.com>
(cherry picked from commit 17e4dbf4b0cf994eafa76a8ea5a702da368b7b97)