cec: message buffered before logical addr allocated [1/1]

BUG=130199965

Problem:
when atom received <System Audio Mode Request> after hotplug
befor logical address have not allocated, if response
<Feature Abort>, it may trigger tv send <Request ARC Termination>,
it may lead arc connect fail

Solution:
buffer <System Audio Mode Request> when received at the time
between hotplug-in and  logical address allocated

Test: test ok using atom

Change-Id: I4de6b74ed2c1f115097f950332bbc3d7c7a1f417
Signed-off-by: Jinping Wang <jinping.wang@amlogic.com>

Cherry-pick: https://partner-android-review.git.corp.google.com/c/platform/frameworks/base/+/1343982/
(cherry picked from commit 3b1e136817f96eea0d548cc4262065564e02e619)

Change-Id: I9cd7524a491d6c56832b14cc6e620429c82b738c