Logic for setFrameRateSelectionStrategy.

Use the frameRateSelectionStrategy value stored in Layer to inform the
frame rate propagation in the hierarchy.

Bug: 297418260
Test: atest CtsSurfaceControlTestsStaging
Test: atest libsurfaceflinger_unittest
Change-Id: I05a6a7effd17cefb01421bff10c9ff9dbcadf98a
4 files changed