Merge "Add some updates to documentation regarding concurrent camera...

Merge "Add some updates to documentation regarding concurrent camera operation." into rvc-dev am: 416e3d94 am: 0bd046e4 am: 3c6f024e am: b7ae323c

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/11832204

Change-Id: I60b1706d19be4e8465649afe07b047d009e3da9d