qcacld-3.0: Set the max_station config correctly for SAP

Set the max_station config correctly at wma_open instead of using
the default value.

Change-Id: I63cd05462351359fbdcaae03dbdff940817b9bde
CRs-Fixed: 2468829

mlme/dispatcher/inc/cfg_mlme_sap.h

@@ -66,7 +66,7 @@
 			"CFG_11G_ONLY_POLICY")
 
 #define CFG_ASSOC_STA_LIMIT CFG_UINT( \
-			"cfg_beacon_interval", \
+			"cfg_assoc_sta_limit", \
 			1, \
 			32, \
 			10, \