Set LOW category to 48 fps

Based on UX.

Bug: 343775394
Test: libsurfaceflinger_unittest
Flag: EXEMPT bugfix
Change-Id: I493152d82e96b3a1a7397fcf6a19077392cf4c23
diff --git a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
index 2c66492..76fbef0 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
+++ b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
@@ -1636,7 +1636,7 @@
         case FrameRateCategory::Normal:
             return FpsRange{60_Hz, 120_Hz};
         case FrameRateCategory::Low:
-            return FpsRange{30_Hz, 120_Hz};
+            return FpsRange{48_Hz, 120_Hz};
         case FrameRateCategory::HighHint:
         case FrameRateCategory::NoPreference:
         case FrameRateCategory::Default: