dw_apb_timer: constify clocksource name

The clocksource name should be const for correctness.

Cc: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
diff --git a/drivers/clocksource/dw_apb_timer.c b/drivers/clocksource/dw_apb_timer.c
index 580f870..8c2a35f 100644
--- a/drivers/clocksource/dw_apb_timer.c
+++ b/drivers/clocksource/dw_apb_timer.c
@@ -348,7 +348,7 @@
  * dw_apb_clocksource_register() as the next step.
  */
 struct dw_apb_clocksource *
-dw_apb_clocksource_init(unsigned rating, char *name, void __iomem *base,
+dw_apb_clocksource_init(unsigned rating, const char *name, void __iomem *base,
 			unsigned long freq)
 {
 	struct dw_apb_clocksource *dw_cs = kzalloc(sizeof(*dw_cs), GFP_KERNEL);