backup and restore of /sdcard/Android (see getExternalFilesDir)

Change-Id: I6306464cdce4e3b48e0d109284e5606f65a84ee2
diff --git a/recovery.c b/recovery.c
index 89fb214..e69a461 100644
--- a/recovery.c
+++ b/recovery.c
@@ -686,6 +686,7 @@
     }
     erase_volume("/sd-ext");
     erase_volume("/sdcard/.android_secure");
+    erase_volume("/sdcard/Android");
     ui_print("Data wipe complete.\n");
 }
 
@@ -826,7 +827,7 @@
         case 'p': previous_runs = atoi(optarg); break;
         case 's': send_intent = optarg; break;
         case 'u': update_package = optarg; break;
-        case 'w': 
+        case 'w':
 #ifndef BOARD_RECOVERY_ALWAYS_WIPES
 		wipe_data = wipe_cache = 1;
 #endif