ARM: shmobile: Move rcar-gen2.h, cleanup r8a7790 case

Change location of rcar-gen2.h so it can be used as #include "rcar-gen2.h"
instead of the old style #include <mach/rcar-gen2.h>. Also clean up
the r8a7790 case to follow the same style as r8a7791.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/mach-shmobile/setup-rcar-gen2.c

@@ -22,9 +22,9 @@
 #include <linux/clocksource.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
-#include <mach/rcar-gen2.h>
 #include <asm/mach/arch.h>
 #include "common.h"
+#include "rcar-gen2.h"
 
 #define MODEMR 0xe6160060