staging: gpib: mark HP82341 driver as broken

The hp82341 driver uses the isapnp_read_byte() call, but it's not
exported for modules at this point in time:

ERROR: modpost: "isapnp_read_byte" [drivers/staging/gpib/hp_82341/hp_82341.ko] undefined!

So mark it as broken for now, it can be fixed and cleaned up later.

Link: https://lore.kernel.org/r/20241014162054.2b91b5af@canb.auug.org.au
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Dave Penkler <dpenkler@gmail.com>
Link: https://lore.kernel.org/r/2024101412-outsider-icing-052e@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/gpib/Kconfig

@@ -161,6 +161,7 @@ config GPIB_HP82341
        tristate "HP82341x"
        select GPIB_COMMON
        select GPIB_TMS9914
+       depends on BROKEN
        depends on ISA_BUS || EISA
        help
          GPIB driver for HP82341 A/B/C/D boards