qcacmn: Fix compilation error for TX multipass to repeater

In case when repeater is not supported for TX multipass,
there is a compilation error due to implicit definition of
dp_tx_multipass_send_pkt_to_repeater.

Fix this compilation error by adding a stub function.

Change-Id: Iad5d19d1d72fc0d2594c893f610de8647308bce0
CRs-Fixed: 3511618

dp/wifi3.0/dp_tx.c

@@ -6863,6 +6863,13 @@ dp_tx_multipass_send_pkt_to_repeater(struct dp_soc *soc, struct dp_vdev *vdev,
 		}
 	}
 }
+#else
+static inline void
+dp_tx_multipass_send_pkt_to_repeater(struct dp_soc *soc, struct dp_vdev *vdev,
+				     qdf_nbuf_t nbuf,
+				     struct dp_tx_msdu_info_s *msdu_info)
+{
+}
 #endif
 
 bool dp_tx_multipass_process(struct dp_soc *soc, struct dp_vdev *vdev,