powerpc: mpc85xx: remove P2020COME board support

This board is still a non-generic board.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Ira W. Snyder <iws@ovro.caltech.edu>
diff --git a/doc/README.scrapyard b/doc/README.scrapyard
index f436a8e..5733c5a 100644
--- a/doc/README.scrapyard
+++ b/doc/README.scrapyard
@@ -12,6 +12,7 @@
 
 Board            Arch        CPU            Commit      Removed     Last known maintainer/contact
 =================================================================================================
+P2020COME        powerpc     mpc85xx        -           -           Ira W. Snyder <iws@ovro.caltech.edu>
 P2020RDB         powerpc     mpc85xx        -           -           Poonam Aggrwal <poonam.aggrwal@freescale.com>
 P2010RDB         powerpc     mpc85xx        -           -
 P1020RDB         powerpc     mpc85xx        -           -