sh: Remove config.mk for sh7763rdp board

Move CONFIG_SYS_TEXT_BASE to the board's config file, and remove the
unnecessary config.mk file.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

board/renesas/sh7763rdp/config.mk

-#
-# board/sh7763rdp/config.mk
-#
-# CONFIG_SYS_TEXT_BASE refers to image _after_ relocation.
-#
-# NOTE: Must match value used in u-boot.lds (in this directory).
-#
-
-CONFIG_SYS_TEXT_BASE = 0x8FFC0000
-
-# PLATFORM_CPPFLAGS += -DCONFIG_MULTIBOOT

include/configs/sh7763rdp.h

@@ -56,6 +56,7 @@
 #define CONFIG_BAUDRATE         115200
 #define CONFIG_CONS_SCIF2		1
 
+#define CONFIG_SYS_TEXT_BASE	0x8FFC0000
 #define CONFIG_SYS_LONGHELP		/* undef to save memory */
 #define CONFIG_SYS_PROMPT		"=> "	/* Monitor Command Prompt */
 #define CONFIG_SYS_CBSIZE		256	/* Buffer size for input from the Console */