ARM: Orion: WDT: Add clk/clkdev support

Remove tclk from platform data.  This makes the platform data
structure empty, so remove it.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c
index 3fc7318..067bdd7 100644
--- a/arch/arm/mach-orion5x/common.c
+++ b/arch/arm/mach-orion5x/common.c
@@ -193,7 +193,7 @@
  ****************************************************************************/
 void __init orion5x_wdt_init(void)
 {
-	orion_wdt_init(orion5x_tclk);
+	orion_wdt_init();
 }