Tag brightness APIs with @SystemAPI

Make the API for tracking brightness
slider events and setting brightness
curves @SystemAPI and @TestAPI
Add developement scope to the brightness
slider events permission to allow cts
testing.

Bug: 69405990
Test: atest android.permission2.cts.PermissionPolicyTest#testPlatformPermissionPolicyUnaltered
Test: atest BrightnessTrackerTest
Change-Id: I39b0b26454528425b62cf99dc8bbccded4e14a18
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 6b89489..f25a979 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -2924,13 +2924,14 @@
 
     <!-- Allows an application to collect usage infomation about brightness slider changes.
          <p>Not for use by third-party applications.</p>
-         TODO: make a System API
-         @hide -->
+         @hide
+         @SystemApi -->
     <permission android:name="android.permission.BRIGHTNESS_SLIDER_USAGE"
-        android:protectionLevel="signature|privileged" />
+        android:protectionLevel="signature|privileged|development" />
 
     <!-- Allows an application to modify the display brightness configuration
-         @hide -->
+         @hide
+         @SystemApi -->
     <permission android:name="android.permission.CONFIGURE_DISPLAY_BRIGHTNESS"
         android:protectionLevel="signature|privileged|development" />