ARM: remove a320evb board support

This is still a non-generic board.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Po-Yu Chuang <ratbert@faraday-tech.com>
Acked-by: Marek Vasut <marex@denx.de>
diff --git a/doc/README.scrapyard b/doc/README.scrapyard
index aa9ed41..1528b9b 100644
--- a/doc/README.scrapyard
+++ b/doc/README.scrapyard
@@ -12,6 +12,7 @@
 
 Board            Arch        CPU            Commit      Removed     Last known maintainer/contact
 =================================================================================================
+a320evb          arm         arm920t        -           -           Po-Yu Chuang <ratbert@faraday-tech.com>
 cm4008           arm         arm920t        -           -           Greg Ungerer <greg.ungerer@opengear.com>
 cm41xx           arm         arm920t        -           -
 dkb              arm         arm926ejs      -           -           Lei Wen <leiwen@marvell.com>