ARM: remove broken "lpd7a40x" boards

Remove lpd7a400 and lpd7a404 boards.

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/doc/README.scrapyard b/doc/README.scrapyard
index ed953d3..4cf2717 100644
--- a/doc/README.scrapyard
+++ b/doc/README.scrapyard
@@ -11,6 +11,7 @@
 
 Board	Arch	CPU	removed	    Commit	last known maintainer/contact
 =============================================================================
+lpd7a404 arm	lh7a40x	-	  2011-07-17
 edb9301	arm	arm920t	-	  2011-07-17
 edb9302	arm	arm920t	-	  2011-07-17
 edb9302a arm	arm920t	-	  2011-07-17