Move PhotoEditor strings into Gallery2.

1. Rename Gallery string "crop" to "crop_action".
2. Rename PhotoEditor string "app_name" to "photoeditor_name".

Change-Id: I22279e7e45b690f22fe8e0e8dd645bb4df821646
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 95a94eb..79833c8 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -155,7 +155,7 @@
          offline. [CHAR LIMIT=15] -->
     <string name="caching_label">Caching...</string>
 
-    <string name="crop">Crop</string>
+    <string name="crop_action">Crop</string>
     <string name="set_as">Set as</string>
 
     <!-- String indicating an approximate location eg. Around Palo Alto, CA -->