staging: vc04_services: don't print pointers directly

kernel pointers should be printed with %pK and are not unsigned int big
on all architectures.  So fix this up to get rid of a bunch of warning
messages.

Note, there are other assumptions in this code that a pointer fits into
an int that need to be fixed up later.

Cc: Daniel Stone <daniels@collabora.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Pranith Kumar <bobby.prani@gmail.com>
Cc: popcornmix <popcornmix@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>