rtl8192e: update for ndo_set_multicast_list removal.

After merging the staging tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/staging/rtl8192e/rtl_core.c:2917:2: error: unknown field 'ndo_set_multicast_list' specified in initializer

Caused by commit 94a79942 ("From: wlanfae <wlanfae@realtek.com>" -
really "[PATCH 1/8] rtl8192e: Import new version of driver from realtek"
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>

drivers/staging/rtl8192e/rtl_core.c

@@ -2867,7 +2867,7 @@ static const struct net_device_ops rtl8192_netdev_ops = {
 	.ndo_stop = rtl8192_close,
 	.ndo_tx_timeout = rtl8192_tx_timeout,
 	.ndo_do_ioctl = rtl8192_ioctl,
-	.ndo_set_multicast_list = r8192_set_multicast,
+	.ndo_set_rx_mode = r8192_set_multicast,
 	.ndo_set_mac_address = r8192_set_mac_adr,
 	.ndo_validate_addr = eth_validate_addr,
 	.ndo_change_mtu = eth_change_mtu,