mpc8260: remove muas3001 board support

This board is still a non-generic board.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Heiko Schocher <hs@denx.de>
diff --git a/doc/README.scrapyard b/doc/README.scrapyard
index f1c2f8b..7f76aae 100644
--- a/doc/README.scrapyard
+++ b/doc/README.scrapyard
@@ -12,6 +12,7 @@
 
 Board            Arch        CPU            Commit      Removed     Last known maintainer/contact
 =================================================================================================
+muas3001         powerpc     mpc8260        -           -           Heiko Schocher <hs@denx.de>
 PM825            powerpc     mpc8260        -           -           Wolfgang Denk <wd@denx.de>
 PM826            powerpc     mpc8260        -           -           Wolfgang Denk <wd@denx.de>
 PM828            powerpc     mpc8260        -           -