[SCSI] ibmvfc: Show host maxframe_size

Set show_host_maxframe_size so that maxframe_size gets exported in
sysfs for the host.
Signed-off-by: NBrian King <brking@linux.vnet.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

drivers/scsi/ibmvscsi/ibmvfc.c

@@ -4195,6 +4195,7 @@ static struct fc_function_template ibmvfc_transport_functions = {
 	.show_host_supported_classes = 1,
 	.show_host_port_type = 1,
 	.show_host_port_id = 1,
+	.show_host_maxframe_size = 1,
 
 	.get_host_port_state = ibmvfc_get_host_port_state,
 	.show_host_port_state = 1,