Create new permission READ_CONTENT_RATING_SYSTEMS

Bug: 63016153
Test: make
Change-Id: Id770424f7d502790968c84039ee3624a2fa2d639
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index be7934b..a3ee66f 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -2632,6 +2632,12 @@
     <permission android:name="android.permission.MODIFY_PARENTAL_CONTROLS"
         android:protectionLevel="signature|privileged" />
 
+    <!-- @SystemApi Allows an application to read TvContentRatingSystemInfo
+         <p>Not for use by third-party applications.
+         @hide -->
+    <permission android:name="android.permission.READ_CONTENT_RATING_SYSTEMS"
+        android:protectionLevel="signature|privileged" />
+
     <!-- @SystemApi Allows an application to notify TV inputs by sending broadcasts.
          <p>Protection level: signature|privileged
          <p>Not for use by third-party applications.