make kernel/power/main.c:suspend_enter() static

suspend_enter() can now become static.
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

kernel/power/main.c

@@ -128,7 +128,7 @@ void __attribute__ ((weak)) arch_suspend_enable_irqs(void)
  *
  *	This function should be called after devices have been suspended.
  */
-int suspend_enter(suspend_state_t state)
+static int suspend_enter(suspend_state_t state)
 {
 	int error = 0;