clk: si5351: Include clk.h

This clock provider uses the consumer API, so include clk.h
explicitly.

Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

drivers/clk/clk-si5351.c

@@ -18,7 +18,7 @@
 
 #include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/clkdev.h>
+#include <linux/clk.h>
 #include <linux/clk-provider.h>
 #include <linux/delay.h>
 #include <linux/err.h>