ril: Use debug log level and not error

Change-Id: I8f017cb181967790260183fd06d1226d303bd2b8
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
diff --git a/ril/libril/ril.cpp b/ril/libril/ril.cpp
index 3217014..c61bd04 100644
--- a/ril/libril/ril.cpp
+++ b/ril/libril/ril.cpp
@@ -2142,7 +2142,7 @@
     pthread_mutex_t * writeMutexHook = &s_writeMutex;
 
 #if VDBG
-    RLOGE("Send Response to %s", rilSocketIdToString(socket_id));
+    RLOGD("Send Response to %s", rilSocketIdToString(socket_id));
 #endif
 
 #if (SIM_COUNT >= 2)