Use %p to print a pointer, so that its length doesn't matter
and so that gcc won't complain.

drivers/mtd/maps/dilnetpc.c:416: warning: long unsigned int format, pointer arg (arg 2)
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>