qcacmn: Fix index recording for FAST_TX_SOFTWARE_INDEX_UPDATE

The sw_index was being recorded in the FAST_TX_SOFTWARE_INDEX_UPDATE
event leading to confusing descriptor history.

Change-Id: I1f2084296f25faf00c30370f47c4d29fb258c90b
CRs-Fixed: 1060098

hif/src/ce/ce_service.c

@@ -576,7 +576,7 @@ int ce_send_fast(struct CE_handle *copyeng, qdf_nbuf_t msdu,
 
 	hif_record_ce_desc_event(scn, ce_state->id,
 				FAST_TX_SOFTWARE_INDEX_UPDATE,
-				NULL, NULL, write_index);
+				NULL, NULL, sw_index);
 
 	if (qdf_unlikely(CE_RING_DELTA(nentries_mask, write_index, sw_index - 1)
 			 < SLOTS_PER_DATAPATH_TX)) {