qcacmn: Update code with peer_extended_stats instead of rdk_stats

With new configuration changes for enable_peer_extended stats, update
code to peer_extended_stats naming for clean codebase.

Change-Id: I97a7ee331042232098382683fefebd05e6b099c3
CRs-Fixed: 3149920

dp/wifi3.0/dp_internal.h

@@ -233,7 +233,7 @@ static inline QDF_STATUS dp_monitor_peer_detach(struct dp_soc *soc,
 }
 
 static inline struct cdp_peer_rate_stats_ctx*
-dp_monitor_peer_get_rdkstats_ctx(struct dp_soc *soc, struct dp_peer *peer)
+dp_monitor_peer_get_peerstats_ctx(struct dp_soc *soc, struct dp_peer *peer)
 {
 	return NULL;
 }