Change setFrameRatecompatibility for preferredRefreshRate

When an app provides a preferredRefreshRate, it should be
translated to a setFrameRate call with
FRAME_RATE_COMPATIBILITY_DEFAULT instead of FRAME_RATE_COMPATIBILITY_EXACT
as it can be any value, and not only a supported refresh rate.

Test: atest RefreshRatePolicyTest
Test: atest FrameRateSelectionPriorityTests

Bug: 257071160
Change-Id: Ib8ee4ba74eac0ba16f7a2591d8aeb5f924224c1b