x86/quirks: Include linux/pnp.h for arch_pnpbios_disabled()

[ Upstream commit 056b44a4 ]

arch_pnpbios_disabled() is defined in architecture code on x86, but this
does not include the appropriate header, causing a warning:

arch/x86/kernel/platform-quirks.c:42:13: error: no previous prototype for 'arch_pnpbios_disabled' [-Werror=missing-prototypes]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://lore.kernel.org/all/20230516193549.544673-10-arnd%40kernel.org


Signed-off-by: Sasha Levin <sashal@kernel.org>