staging: gpib: Fix pr_err format warning

staging: gpib: Fix pr_err format warning

This patch fixes the following compile warning:

drivers/staging/gpib/hp_82341/hp_82341.c: In function 'hp_82341_attach':
./include/linux/kern_levels.h:5:25: warning: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'u32' {aka 'unsigned int'} [-Wformat=]

It was introduced in

commit baf8855c9160 ("staging: gpib: fix address space mixup")

but was not detected as the build of the driver depended on BROKEN.

Fixes: baf8855c9160 ("staging: gpib: fix address space mixup")
Signed-off-by: Dave Penkler <dpenkler@gmail.com>
Link: https://lore.kernel.org/r/20250124105900.27592-2-dpenkler@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>