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 <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/gpib/hp_82341/hp_82341.c

···
 	for (i = 0; i < hp_82341_num_io_regions; ++i) {
 		start_addr = iobase + i * hp_priv->io_region_offset;
 		if (!request_region(start_addr, hp_82341_region_iosize, "hp_82341")) {
-			pr_err("hp_82341: failed to allocate io ports 0x%lx-0x%lx\n",
+			pr_err("hp_82341: failed to allocate io ports 0x%x-0x%x\n",
 			       start_addr,
 			       start_addr + hp_82341_region_iosize - 1);
 			return -EIO;