ppc4xx: Convert lwmon5 board to generic board

Add CONFIG_SYS_GENERIC_BOARD to lwmon5.h and CONFIG_DISPLAY_BOARDINFO
to Kconfig file.
Signed-off-by: NStefan Roese <sr@denx.de>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>

board/lwmon5/Kconfig

@@ -6,4 +6,8 @@ config SYS_BOARD
 config SYS_CONFIG_NAME
 	default "lwmon5"
 
+config DISPLAY_BOARDINFO
+	bool
+	default y
+
 endif

include/configs/lwmon5.h

@@ -23,6 +23,8 @@
 #define CONFIG_440EPX		1		/* Specific PPC440EPx	*/
 #define CONFIG_440		1		/* ... PPC440 family	*/
 
+#define CONFIG_SYS_GENERIC_BOARD
+
 #ifdef CONFIG_LCD4_LWMON5
 #define	CONFIG_SYS_TEXT_BASE	0x01000000 /* SPL U-Boot TEXT_BASE */
 #define CONFIG_HOSTNAME		lcd4_lwmon5