HDMI: Fix broadcast vendor command handling error

HDMI CEC spec allows broadcasted <Vendor Command With ID> but it is always ignored regardless of listener registration.
Fix to allow broadcasted <Vendor Command With ID> and ignore it only when there is no listener registration.

Bug: 364774754
Test: atest com.android.server.hdmi
Merged-In: Ica6a40bf99a30179344ab51e1f1db5e2456abc82
Change-Id: Ica6a40bf99a30179344ab51e1f1db5e2456abc82
2 files changed