Allow android.hardware.camera.common@1.0-helper to access vendor tags

This allows vendor camera clients to access provider specific vendor
tags. No expected behavior changes to camera HAL process(es).

Also fixes OWNERS file.

Bug: 129688550

Test: AImageReaderTest modified to set a vendor tag in CaptureRequest
Test: Take still pictures / record video (sanity)
Test: camera CTS tests

Change-Id: I18b678e7e0db7f1b29c3de0b762cb65e25842fa8
Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>