recovery: fix failure to unmount "/cache"

At load_locale_from_cache() function, LOCALE_FILE must get closed
after it is opened and used. Otherwise it causes a failure to
unmount "/cache" after load_locale_from_cache() function is called.

Change-Id: I9cec0f29a8ec4452c8a6a52e2f3c8ce9930d5372
Signed-off-by: Iliyan Malchev <malchev@google.com>

recovery.cpp

@@ -798,6 +798,7 @@ load_locale_from_cache() {
         }
         buffer[j] = 0;
         locale = strdup(buffer);
+        check_and_fclose(fp, LOCALE_FILE);
     }
 }