vold: Switch from LOG -> SLOG

Change-Id: I48ee8bd90b47f5845f069cdf4d1b8ba6ecdb1b39
Signed-off-by: San Mehat <san@google.com>
diff --git a/ResponseCode.cpp b/ResponseCode.cpp
index cb9f98c..d7e778d 100644
--- a/ResponseCode.cpp
+++ b/ResponseCode.cpp
@@ -37,6 +37,6 @@
         return(ResponseCode::OpFailedStorageNotFound);
     }
 
-    LOGW("Returning OperationFailed - no handler for errno %d", errno);
+    SLOGW("Returning OperationFailed - no handler for errno %d", errno);
     return(ResponseCode::OperationFailed);
 }