x86: more header fixes

Summary: Add missing include guards for some x86 headers.

This has only had the most rudimentary testing, but is hopefully obviously
correct.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/asm-x86/suspend_32.h b/include/asm-x86/suspend_32.h
index 24e1c08..8675c67 100644
--- a/include/asm-x86/suspend_32.h
+++ b/include/asm-x86/suspend_32.h
@@ -3,6 +3,9 @@
  * Based on code
  * Copyright 2001 Patrick Mochel <mochel@osdl.org>
  */
+#ifndef __ASM_X86_32_SUSPEND_H
+#define __ASM_X86_32_SUSPEND_H
+
 #include <asm/desc.h>
 #include <asm/i387.h>
 
@@ -44,3 +47,5 @@
 /* routines for saving/restoring kernel state */
 extern int acpi_save_state_mem(void);
 #endif
+
+#endif /* __ASM_X86_32_SUSPEND_H */