clk: rockchip: Properly include clk.h

Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Only include clk.h if it's actually used.

Cc: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

drivers/clk/rockchip/clk-rk3188.c

@@ -13,6 +13,7 @@
  * GNU General Public License for more details.
  */
 
+#include <linux/clk.h>
 #include <linux/clk-provider.h>
 #include <linux/of.h>
 #include <linux/of_address.h>