sh: export board_pci_channels in one place

Instead of sometimes exporting board_pci_channels[] in the board specific
code just export it in one place.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/drivers/pci/ops-r7780rp.c

@@ -46,7 +46,6 @@ struct pci_channel board_pci_channels[] = {
 	{ sh7780_pci_init, &sh4_pci_ops, &sh7780_io_resource, &sh7780_mem_resource, 0, 0xff },
 	{ NULL, NULL, NULL, 0, 0 },
 };
-EXPORT_SYMBOL(board_pci_channels);
 
 static struct sh4_pci_address_map sh7780_pci_map = {
 	.window0	= {