x86: unify power/cpu_(32|64) global variables

Aiming total unification of cpu_32.c and cpu_64.c, in this step
we do unify the global variables and existing forward declarations
for such files.
Signed-off-by: Sergio Luis <sergio@larces.uece.br>
Signed-off-by: Lauro Salmito <laurosalmito@gmail.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

arch/x86/power/cpu_32.c

@@ -18,12 +18,19 @@
 #include <asm/xcr.h>
 #include <asm/suspend.h>
 
+#ifdef CONFIG_X86_32
 static struct saved_context saved_context;
 
 unsigned long saved_context_ebx;
 unsigned long saved_context_esp, saved_context_ebp;
 unsigned long saved_context_esi, saved_context_edi;
 unsigned long saved_context_eflags;
+#else
+/* CONFIG_X86_64 */
+static void fix_processor_context(void);
+
+struct saved_context saved_context;
+#endif
 
 static void __save_processor_state(struct saved_context *ctxt)
 {

arch/x86/power/cpu_64.c

@@ -19,9 +19,19 @@
 #include <asm/xcr.h>
 #include <asm/suspend.h>
 
+#ifdef CONFIG_X86_32
+static struct saved_context saved_context;
+
+unsigned long saved_context_ebx;
+unsigned long saved_context_esp, saved_context_ebp;
+unsigned long saved_context_esi, saved_context_edi;
+unsigned long saved_context_eflags;
+#else
+/* CONFIG_X86_64 */
 static void fix_processor_context(void);
 
 struct saved_context saved_context;
+#endif
 
 /**
  *	__save_processor_state - save CPU registers before creating a