clkdev: Export clk_register_clkdev

So it can be used from modules such as clk-test.ko.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c
index 901d242..29a1ab7 100644
--- a/drivers/clk/clkdev.c
+++ b/drivers/clk/clkdev.c
@@ -377,6 +377,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(clk_register_clkdev);
 
 /**
  * clk_register_clkdevs - register a set of clk_lookup for a struct clk