qcacmn: Cleanup CONFIG_MCL for pktlog related code

Replace macro CONFIG_MCL with FEATURE_PKTLOG for
pktlog related code.

Add some macro changes to ensure the following 3
functions' declarations are enclosed by the right
macros:

wlan_deregister_txrx_packetdump
wlan_register_txrx_packetdump
wlan_pkt_stats_to_logger_thread

Change-Id: I900de3be28faee8403923a5e4bd326e69895d998
CRs-Fixed: 2406250

utils/logging/src/wlan_logging_sock_svc.c

@@ -1146,7 +1146,7 @@ void wlan_flush_host_logs_for_fatal(void)
 #endif
 }
 
-#ifdef CONFIG_MCL
+#ifdef FEATURE_PKTLOG
 #ifndef REMOVE_PKT_LOG
 
 static uint8_t gtx_count;
@@ -1532,5 +1532,5 @@ void wlan_register_txrx_packetdump(void)
 	grx_count = 0;
 }
 #endif /* REMOVE_PKT_LOG */
-#endif /* CONFIG_MCL */
+#endif /* FEATURE_PKTLOG */
 #endif /* WLAN_LOGGING_SOCK_SVC_ENABLE */