Change OK to CROP fro CropImage.

fix: 5199444

Change-Id: I8ee74ba371c5537d7b86d771a202e0ac40668dfc
diff --git a/res/values/strings.xml b/res/values/strings.xml
index f27d82f..af62883 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -57,7 +57,7 @@
 
     <!-- Title of a menu item to indicate performing the image crop operation
          [CHAR LIMIT=20] -->
-    <string name="crop_save_text">OK</string>
+    <string name="crop_save_text">Crop</string>
     <!-- Button indicating that the cropped image should be reverted back to the original -->
     <!-- Hint that appears when cropping an image with more than one face -->
     <string name="multiface_crop_help">Touch a face to begin.</string>