qcacmn: Send cmd to dump FW stats on suspend failure

Add support to send unit test command to FW to dump
stats on suspend failure due to pending tx completions.

Change-Id: I6afb69a862c366c66a1e1f3dc009964272dfb75a
CRs-Fixed: 3151458

dp/inc/cdp_txrx_ops.h

@@ -1327,6 +1327,10 @@ struct ol_if_ops {
 				   uint8_t add_or_sub, uint8_t ac);
 #endif
 	uint32_t (*dp_get_tx_inqueue)(ol_txrx_soc_handle soc);
+	QDF_STATUS(*dp_send_unit_test_cmd)(uint32_t vdev_id,
+					   uint32_t module_id,
+					   uint32_t arg_count, uint32_t *arg);
+
 };
 
 #ifdef DP_PEER_EXTENDED_API