[PATCH] ieee1394: clean up declarations of hpsb_*_config_rom

hpsb_update_config_rom() is defined in csr.c, not hosts.c.
hpsb_get_config_rom() does not exist.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>