ARM: mach-clps711x: move special idle code out of line

... and hook it to arm_pm_idle.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
diff --git a/arch/arm/mach-clps711x/common.c b/arch/arm/mach-clps711x/common.c
index ab1711b..8736c1a 100644
--- a/arch/arm/mach-clps711x/common.c
+++ b/arch/arm/mach-clps711x/common.c
@@ -225,3 +225,19 @@
 {
 	soft_restart(0);
 }
+
+static void clps711x_idle(void)
+{
+	clps_writel(1, HALT);
+	__asm__ __volatile__(
+	"mov    r0, r0\n\
+	mov     r0, r0");
+}
+
+static int __init clps711x_idle_init(void)
+{
+	arm_pm_idle = clps711x_idle;
+	return 0;
+}
+
+arch_initcall(clps711x_idle_init);