SurfaceFlinger: fix frame rate override on BLAST

Apply BLAST transactions only is the vsync is considered valid
for that layer (i.e. the vsync aligns to the overriden vsync policy).

Bug: 170502573
Test: atest FrameRateOverrideHostTest
Change-Id: I379f76556922391df370b551f3034d2c01c94859
1 file changed