Camera: Add EFV support for extension latency mitigations

The EFV extension layer was originally designed without any
still capture latency in mind and didn't include any support
for the existing mitigations.
Since the layer can be used by other extension implementation
the gap needs to be closed.

Flag: com.android.internal.camera.flags.efv_capture_latency
Bug: 423674832
Bug: 297083874
Test: Camera CTS
Change-Id: Ice82775456256ba2e66a713a55061f76f3bca339