mfd: Add MODULE_DEVICE_TABLE to vx855

The device table is required to load modules based on modaliases.
After adding the MODULE_DEVICE_TABLE, below entries will be added to
modules.pcimap:
vx855                0x00001106 0x00008409 0xffffffff 0xffffffff 0x00000000 0x00000000 0x0

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/vx855.c b/drivers/mfd/vx855.c
index 348052a..d698703 100644
--- a/drivers/mfd/vx855.c
+++ b/drivers/mfd/vx855.c
@@ -122,6 +122,7 @@
 	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX855) },
 	{ 0, }
 };
+MODULE_DEVICE_TABLE(pci, vx855_pci_tbl);
 
 static struct pci_driver vx855_pci_driver = {
 	.name		= "vx855",