"My Phone" -> "About Phone"

String polishing fix.

Bug: 36458278
Test: Manual
Change-Id: If0d90aa252d0ffe8bdbb8d255d1bec736ba2017a
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index e2accdd..3fd5865 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -983,7 +983,7 @@
         </activity>
 
         <activity android:name=".Settings$MyDeviceInfoActivity"
-                  android:label="@string/device_info_settings"
+                  android:label="@string/about_settings"
                   android:icon="@drawable/ic_settings_about"
                   android:taskAffinity="com.android.settings"
                   android:parentActivityName="Settings">