asn1: Fix build with DEBUG_LEVEL < 2

src/libstrongswan/asn1/asn1.c

@@ -548,9 +548,10 @@ void asn1_debug_simple_object(chunk_t object, asn1_t type, bool private)
 		case ASN1_UTCTIME:
 		case ASN1_GENERALIZEDTIME:
 			{
+#if DEBUG_LEVEL >= 2
 				time_t time = asn1_to_time(&object, type);
-
 				DBG2(DBG_ASN, "  '%T'", &time, TRUE);
+#endif
 			}
 			return;
 		default:

src/libstrongswan/asn1/asn1_parser.c

@@ -89,7 +89,7 @@ METHOD(asn1_parser_t, iterate, bool,
 {
 	chunk_t *blob, *blob1, blob_ori;
 	u_char *start_ptr;
-	u_int level;
+	u_int level DBG_UNUSED;
 	asn1Object_t obj;
 
 	*object = chunk_empty;