sh: add support for sh7752evb board

The R0P7752C00000RZ board has SH7752, 512MB DDR3-SDRAM, SPI ROM,
Gigabit Ethernet, and eMMC.

This patch supports the following functions:
 - 512MB DDR3-SDRAM, SCIF4, SPI ROM, Gigabit Ethernet, eMMC

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/sh/include/asm/cpu_sh4.h b/arch/sh/include/asm/cpu_sh4.h
index f1f49fe..af5c56f 100644
--- a/arch/sh/include/asm/cpu_sh4.h
+++ b/arch/sh/include/asm/cpu_sh4.h
@@ -48,6 +48,8 @@
 # include <asm/cpu_sh7724.h>
 #elif defined (CONFIG_CPU_SH7734)
 # include <asm/cpu_sh7734.h>
+#elif defined (CONFIG_CPU_SH7752)
+# include <asm/cpu_sh7752.h>
 #elif defined (CONFIG_CPU_SH7757)
 # include <asm/cpu_sh7757.h>
 #elif defined (CONFIG_CPU_SH7763)