sh: boards: Replace <linux/clk-provider.h> by <linux/of_clk.h>

The SuperH/J2 DT platform code is not a clock provider, and just needs
to call of_clk_init().

Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20201110155029.3286090-1-geert+renesas@glider.beSigned-off-by: Stephen Boyd <sboyd@kernel.org>

arch/sh/boards/of-generic.c

@@ -6,10 +6,10 @@
  */
 
 #include <linux/of.h>
+#include <linux/of_clk.h>
 #include <linux/of_fdt.h>
 #include <linux/clocksource.h>
 #include <linux/irqchip.h>
-#include <linux/clk-provider.h>
 #include <asm/machvec.h>
 #include <asm/rtc.h>