[PATCH -next?] x86: PCI: asm/pci_x86.h needs more #includes

[Randy Dunlap <rdunlap@infradead.org>]

<asm/pci_x86.h> uses EINVAL, __init, and raw_spinlock_t, so it
should #include the appropriate files to prevent build errors.

../arch/x86/include/asm/pci_x86.h:150:10: error: ‘EINVAL’ undeclared (first use in this function)
  return -EINVAL;

../arch/x86/include/asm/pci_x86.h:105:8: error: unknown type name ‘raw_spinlock_t’
 extern raw_spinlock_t pci_config_lock;

../arch/x86/include/asm/pci_x86.h:141:20: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘dmi_check_pciprobe’
 extern void __init dmi_check_pciprobe(void);

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: x86@kernel.org
Cc: linux-pci@vger.kernel.org
---
Without this patch, I am seeing *many* build errors in
linux-next-20220225.

I don't know why this showed up in linux-next-20220225 all of a
sudden.

 arch/x86/include/asm/pci_x86.h |    3 +++
 1 file changed, 3 insertions(+)

--- linux-next-20220225.orig/arch/x86/include/asm/pci_x86.h
+++ linux-next-20220225/arch/x86/include/asm/pci_x86.h
@@ -5,7 +5,10 @@
  *	(c) 1999 Martin Mares <mj@ucw.cz>
  */
 
+#include <linux/errno.h>
+#include <linux/init.h>
 #include <linux/ioport.h>
+#include <linux/spinlock.h>
 
 #undef DEBUG