clk: qoriq: Make local symbol 'static'

drivers/clk/clk-qoriq.c:59:22: warning: symbol 'cmux_ops' was not declared. Should it be static?

Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
diff --git a/drivers/clk/clk-qoriq.c b/drivers/clk/clk-qoriq.c
index e25dea9..07936a3 100644
--- a/drivers/clk/clk-qoriq.c
+++ b/drivers/clk/clk-qoriq.c
@@ -56,7 +56,7 @@
 	return clksel;
 }
 
-const struct clk_ops cmux_ops = {
+static const struct clk_ops cmux_ops = {
 	.get_parent = cmux_get_parent,
 	.set_parent = cmux_set_parent,
 };