Staging: hv: Fix a bug affecting IPv6

Fix a bug affecting IPv6
Added the multicast flag for proper IPv6 function.
Reported-by: NToshikazu Sakai <toshikas@microsoft.com>
Signed-off-by: NHank Janssen <hjanssen@microsoft.com>
Signed-off-by: NHaiyang Zhang <haiyangz@microsoft.com>
Cc: stable <stable@kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/RndisFilter.c

@@ -751,6 +751,7 @@ static int RndisFilterOpenDevice(struct rndis_device *Device)
 
 	ret = RndisFilterSetPacketFilter(Device,
 					 NDIS_PACKET_TYPE_BROADCAST |
+					 NDIS_PACKET_TYPE_ALL_MULTICAST |
 					 NDIS_PACKET_TYPE_DIRECTED);
 	if (ret == 0)
 		Device->State = RNDIS_DEV_DATAINITIALIZED;