ARM: at91: Remove clk-provider.h include

This file doesn't use the clk provider APIs. Remove the include.
Acked-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

arch/arm/mach-at91/at91rm9200.c

@@ -8,7 +8,6 @@
  * Licensed under GPLv2 or later.
  */
 
-#include <linux/clk-provider.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>