qcacmn: Clean up TxRx statistics

Cleanup the print format for rate stats.
Add missing elements in HAL tx completion structure.

Change-Id: I57aaac605fce5060f7943b9bbe95ef8e8c2d3b7b

dp/wifi3.0/dp_rx.c

@@ -1215,11 +1215,11 @@ done:
 					 && (pkt_type == DOT11_AC)));
 			DP_STATS_INCC(peer, rx.pkt_type[pkt_type].
 					mcs_count[MAX_MCS], 1,
-					((mcs >= MAX_MCS)
+					((mcs >= (MAX_MCS-1))
 					 && (pkt_type == DOT11_AX)));
 			DP_STATS_INCC(peer, rx.pkt_type[pkt_type].
 					mcs_count[mcs], 1,
-					((mcs <= MAX_MCS)
+					((mcs <= (MAX_MCS-1))
 					 && (pkt_type == DOT11_AX)));
 
 			/*