Staging: Fix gcc warnings in sxg

Fix for compiler warning about format specifier in prints in
drivers/staging/sxg/sxg.c
Prints were using %x to print unsigned long data.


Signed-off-by: J.R. Mauro <jrm8005@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>