qcacld-3.0: Fix clang warning implicit conversion enum type QDF_STATUS

warning: implicit conversion from enumeration type 'QDF_STATUS' to
different enumeration type 'enum tSirRetStatus' [-Wenum-conversion].

Change-Id: I4627325a927c36f3c4f9bb6d89f04146784d458a
CRs-Fixed: 2055487

core/sme/src/common/sme_api.c

@@ -4622,8 +4622,10 @@ QDF_STATUS sme_wow_delete_pattern(tHalHandle hal,
 	if (eSIR_SUCCESS != ret_code) {
 		sme_err("Posting WMA_WOWL_DEL_BCAST_PTRN failed, reason: %X",
 			ret_code);
+		return QDF_STATUS_E_FAILURE;
 	}
-	return ret_code;
+
+	return QDF_STATUS_SUCCESS;
 }
 
 /**