sh: Add initial support for SH7757 CPU subtype

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index c4a955d..d17570c 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -396,6 +396,13 @@
 	help
 	  Select SH7724 if you have an SH-MobileR2R CPU.
 
+config CPU_SUBTYPE_SH7757
+	bool "Support SH7757 processor"
+	select CPU_SH4A
+	select CPU_SHX2
+	help
+	  Select SH7757 if you have a SH4A SH7757 CPU.
+
 config CPU_SUBTYPE_SH7763
 	bool "Support SH7763 processor"
 	select CPU_SH4A