Rename color transform to color mode and persist the value.

Also, standardize on a set of possible modes for the displays to
enter and separate the configuration of the color mode from the
configuration of the display mode.

Bug: 29044347

Change-Id: I6af0a7d1f11bc72d4cefc380f115c1fb00788864
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 4b66f70..48dfdff 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -2508,11 +2508,10 @@
     <permission android:name="android.permission.CONTROL_WIFI_DISPLAY"
         android:protectionLevel="signature" />
 
-    <!-- Allows an application to control the color transforms applied to
-         displays system-wide.
+    <!-- Allows an application to control the color modes set for displays system-wide.
          <p>Not for use by third-party applications.</p>
          @hide -->
-    <permission android:name="android.permission.CONFIGURE_DISPLAY_COLOR_TRANSFORM"
+    <permission android:name="android.permission.CONFIGURE_DISPLAY_COLOR_MODE"
         android:protectionLevel="signature" />
 
     <!-- @SystemApi Allows an application to control VPN.