Rename READ_MEDIA_IMAGE to READ_MEDIA_IMAGES

This permission was only created very recently, and it is unlikely that
any apps are using it yet.

After its creation, it was decided that it should be renamed.

Bug: 223691971
Test: atest CtsPermissionTestCases CtsPermission3TestCases
Change-Id: If82cee5995a2adc8e1b1fcc88ea7b540e7df0fac
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index be4810f..06a07b1 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -9,7 +9,7 @@
     <uses-permission android:name="android.permission.WRITE_MEDIA_STORAGE" />
     <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.READ_MEDIA_IMAGE" />
+    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES" />
     <uses-permission android:name="android.permission.READ_MEDIA_VIDEO" />
     <uses-permission android:name="android.permission.READ_MEDIA_AUDIO" />
     <uses-permission android:name="android.permission.WRITE_SETTINGS" />