sh: move CONFIG_{SH2, SH2A, SH3, SH4} to Kconfig

This commit moves CONFIG_SH2, CONFIG_SH2A, CONFIG_SH3, CONFIG_SH4
to Kconfig renaming into CONFIG_CPU_SH2, CONFIG_CPU_SH2A,
CONFIG_CPU_SH3, CONFIG_CPU_SH4, respectively because
arch/sh/Kconfig of Linux uses CONFIG_CPU_SH* convention.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/include/sh_tmu.h b/include/sh_tmu.h
index 61afc71..97d578d 100644
--- a/include/sh_tmu.h
+++ b/include/sh_tmu.h
@@ -25,7 +25,7 @@
 
 #include <asm/types.h>
 
-#if defined(CONFIG_SH3)
+#if defined(CONFIG_CPU_SH3)
 struct tmu_regs {
 	u8	tocr;
 	u8	reserved0;
@@ -45,9 +45,9 @@
 	u16	reserved4;
 	u32	tcpr2;
 };
-#endif /* CONFIG_SH3 */
+#endif /* CONFIG_CPU_SH3 */
 
-#if defined(CONFIG_SH4) || defined(CONFIG_RMOBILE)
+#if defined(CONFIG_CPU_SH4) || defined(CONFIG_RMOBILE)
 struct tmu_regs {
 	u32 reserved;
 	u8  tstr;
@@ -65,7 +65,7 @@
 	u16 tcr2;
 	u16 reserved5;
 };
-#endif /* CONFIG_SH4 */
+#endif /* CONFIG_CPU_SH4 */
 
 static inline unsigned long get_tmu0_clk_rate(void)
 {