ppc4xx: Add matrix kbd support to lwmon5 board (440EPx based)

This patch adds support for the matrix keyboard on the lwmon5 board.
Since the implementation in the dsPCI is kind of compatible with the
"old" lwmon board, most of the code is copied from the lwmon
board directory.

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/include/asm-ppc/global_data.h b/include/asm-ppc/global_data.h
index cd24636..a35013d 100644
--- a/include/asm-ppc/global_data.h
+++ b/include/asm-ppc/global_data.h
@@ -129,7 +129,7 @@
 	unsigned long do_mdm_init;
 	unsigned long be_quiet;
 #endif
-#ifdef CONFIG_LWMON
+#if defined(CONFIG_LWMON) || defined(CONFIG_LWMON5)
 	unsigned long kbd_status;
 #endif
 	void		**jt;		/* jump table */