Changes inside CONFIG_IA64_GENERIC CONFIG_IA64_SGI_SN2
Need to include sn/io.h for generic builds (sn_+pci_set_vchan def)
Remove rrb alloc - now done in PROM
Remove endian setting - now done in PROM
Change arg 2 for sn_pci_set_vchan()

Acked-by: Jes Sorenson
Signed-off-by: Patrick Gefre <pfg@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>