Orion5x: Fix Section mismatch warnings

Wrongly placed __initdata, and missing __init caused these warnings.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c
index 2448166..e2e9db4 100644
--- a/arch/arm/mach-orion5x/common.c
+++ b/arch/arm/mach-orion5x/common.c
@@ -205,7 +205,7 @@
 	return 166666667;
 }
 
-static void orion5x_timer_init(void)
+static void __init orion5x_timer_init(void)
 {
 	orion5x_tclk = orion5x_find_tclk();