qcacld-3.0: correct return value for pld_pcie_get_user_msi_assignment

Without CNSS module, function pld_pcie_get_user_msi_assignment return zero
even no msi config. For caller function pld_get_user_msi_assignment, zero
means TRUE. It will result to panic when deinit sequence called in
function hif_ce_srng_msi_free_irq. Return correcly value to avoid panic.

Change-Id: Id4480ef1db5357943162472963c4e78d7bfe64b8
CRs-Fixed: 2373130

core/pld/src/pld_pcie.h

@@ -278,7 +278,7 @@ static inline int pld_pcie_get_user_msi_assignment(struct device *dev,
 						   uint32_t *user_base_data,
 						   uint32_t *base_vector)
 {
-	return 0;
+	return -EINVAL;
 }
 
 static inline int pld_pcie_get_msi_irq(struct device *dev, unsigned int vector)