sh: sh7763rdp: Moved sh7763rdp board to board/renesas

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/Makefile b/Makefile
index 69ec707..ab61375 100644
--- a/Makefile
+++ b/Makefile
@@ -3169,7 +3169,7 @@
 sh7763rdp_config  :   unconfig
 	@mkdir -p $(obj)include
 	@echo "#define CONFIG_SH7763RDP 1" > $(obj)include/config.h
-	@$(MKCONFIG) -a $(@:_config=) sh sh4 sh7763rdp
+	@$(MKCONFIG) -a $(@:_config=) sh sh4 sh7763rdp renesas
 
 sh7785lcr_config  :   unconfig
 	@ >include/config.h