ALSA: HDA: wait for eld available

ALSA: HDA: wait for eld available

If HDMI presence is detected successfully, wait for eld
data available in L4T.As L4T does not retry for pcm_open

Bug 200170726

Change-Id: I208b97db9f8610a1eb86004c87b357c926cf45e2
Signed-off-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-on: http://git-master/r/1159086
(cherry picked from commit 84f925671c7b6be09aa44c1ca3c23ee4af6c5b40)
Reviewed-on: http://git-master/r/1170219
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Shaunak Gupte <shaunakg@nvidia.com>