clk: renesas: Rename header file renesas.h

This is part of an ongoing process to migrate from ARCH_SHMOBILE to
ARCH_RENESAS the motivation for which being that RENESAS seems to be a more
appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs.

Along with the above mentioned Kconfig changes it seems appropriate
to also rename files.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

arch/arm/mach-shmobile/pm-rmobile.c

@@ -12,7 +12,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  */
-#include <linux/clk/shmobile.h>
+#include <linux/clk/renesas.h>
 #include <linux/console.h>
 #include <linux/delay.h>
 #include <linux/of.h>