qcacld-3.0: Free dp_txrx_handle in dp_rx_refill_thread_init fail case

Currently in dp_txrx_init during dp_rx_refill_thread_init fail case
dp_txrx_handle is not freed which results in memory leak issue.

To fix the issue free dp_txrx_handle in dp_rx_refill_thread_init
fail case

Change-Id: I0804154519707d5d558940cccaa699f639ae6704
CRs-Fixed: 3563740

components/dp/core/src/wlan_dp_rx_thread.c

@@ -1521,6 +1521,7 @@ QDF_STATUS dp_txrx_init(ol_txrx_soc_handle soc, uint8_t pdev_id,
 		if (qdf_status != QDF_STATUS_SUCCESS) {
 			dp_err("Failed to initialize RX refill thread status:%d",
 			       qdf_status);
+			qdf_mem_free(dp_ext_hdl);
 			return qdf_status;
 		}
 		cdp_register_rx_refill_thread_sched_handler(soc,