MIPS: Idle: Consolidate all declarations in <asm/idle.h>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index 38afb11..93fa586 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -36,6 +36,7 @@
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
 
+#include <asm/idle.h>
 #include <asm/processor.h>
 #include <asm/time.h>
 #include <asm/mach-au1x00/au1000.h>