Fixed source vote + no preference category for MRR

This allows the explicit setFrameRate fixed source votes to pass through
in MRR devices when an explicit frame rate category (No Preference)
is sent.

This allows new View logic to set video frame rate when there
is only one View.

Bug: 352206100
Test: atest libsurfaceflinger_unittest
Flag: com.android.graphics.surfaceflinger.flags.view_set_requested_frame_rate_mrr

Change-Id: I1d19318815f323852eab95b9d7c4b4a6e78518ab