qcacmn: Add API to read tsf time

Add API to read tsf time from scratch registers.

Change-Id: If736c31f9ae522a9f853e7b83b6b8a61cad990da
CRs-Fixed: 3287544

hal/wifi3.0/hal_internal.h

@@ -1199,6 +1199,9 @@ struct hal_hw_txrx_ops {
 	void (*hal_tx_vdev_mcast_ctrl_set)(hal_soc_handle_t hal_soc_hdl,
 					   uint8_t vdev_id,
 					   uint8_t mcast_ctrl_val);
+	void (*hal_get_tsf_time)(hal_soc_handle_t hal_soc_hdl, uint32_t tsf_id,
+				 uint32_t mac_id, uint64_t *tsf,
+				 uint64_t *tsf_sync_soc_time);
 };
 
 /**