qcacld-3.0: Enable CONFIG_HOST_OPCLASS for genoa

Enable CONFIG_HOST_OPCLASS to include supported
operating class feature in host driver for genoa.

Change-Id: I44d6a3aa7c1c3372186532f7ff1f4353aba41350
CRs-Fixed: 2429681

configs/genoa.common

@@ -201,4 +201,6 @@ CONFIG_BEACON_TX_OFFLOAD_MAX_VDEV := 3
 #Beacon offload config
 CONFIG_WMI_BCN_OFFLOAD := y
 
+#Flag to enable Supported Operating class
+CONFIG_HOST_OPCLASS := y
 ###################################