Moves BrightnessUtils into SettingsLib DisplayUtils.

(Renamed from DisplayDensityUtils to be more generic)

This allows the AccessibilityMenu accessibility service APK
to include a much smaller dependency static library, decreasing
the post-optimization APK size from 3mb to 200kb.

Bug: 261252772
Test: build-only changes; check local & Treehugger builds
test: inspect AccessibilityMenu APK size
Change-Id: Iad36eb739ac38d923acabe558bc8f9c0395495d3
diff --git a/packages/SettingsLib/Android.bp b/packages/SettingsLib/Android.bp
index f170ead..af20a4b 100644
--- a/packages/SettingsLib/Android.bp
+++ b/packages/SettingsLib/Android.bp
@@ -42,7 +42,7 @@
         "SettingsLibAdaptiveIcon",
         "SettingsLibRadioButtonPreference",
         "SettingsLibSelectorWithWidgetPreference",
-        "SettingsLibDisplayDensityUtils",
+        "SettingsLibDisplayUtils",
         "SettingsLibUtils",
         "SettingsLibEmergencyNumber",
         "SettingsLibTopIntroPreference",