Camera: Disable buffer timestamp pruning during burst capture

In some scenarios, burst during basic extension still capture can
encounter older or duplicate frames. Instead of failing the request,
continue collecting frames and results and send them for processing
in the extension. Extensions can decide how to handle this and
accordingly.

Bug: 306121595
Test: atest -c -d cts/tests/camera/src/android/hardware/camera2/cts/CameraExtensionSessionTest.java

Change-Id: I3afd57af08dd3c1ad375e62eff02152e2cf52479