sh: pci: Track io and mem_offset per-channel.

This implements a per-hose offset for I/O and mem resources.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/include/asm/pci.h

@@ -25,6 +25,9 @@ struct pci_channel {
 	struct resource		*io_resource;
 	struct resource		*mem_resource;
 
+	unsigned long		io_offset;
+	unsigned long		mem_offset;
+
 	int			first_devfn;
 	int			last_devfn;
 	int			enabled;