qcacmn: Fix compilation issue for IPA when vlan is enable

variable is not defined leading to compilation
issue when vlan is enable in SDX.

Fix is to correct the variable name.

Change-Id: I2d3618d9ad3d8a48026cb8c737ce6ede733cb478
CRs-Fixed: 3462236

dp/wifi3.0/dp_ipa.c

@@ -2566,7 +2566,7 @@ dp_ipa_wdi_rx_alt_pipe_smmu_params(struct dp_soc *soc,
 			QDF_IPA_WDI_SETUP_INFO_SMMU_CLIENT(rx_smmu) =
 				IPA_CLIENT_WLAN3_PROD1;
 		else if (hdl == DP_IPA_HDL_THIRD)
-			QDF_IPA_WDI_SETUP_INFO_CLIENT(rx) =
+			QDF_IPA_WDI_SETUP_INFO_CLIENT(rx_smmu) =
 				IPA_CLIENT_WLAN1_PROD1;
 	} else {
 		QDF_IPA_WDI_SETUP_INFO_SMMU_CLIENT(rx_smmu) =