powerpc: ppc4xx: remove board support for CRAYL1

This board has been orphaned for more than 6 months.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/doc/README.scrapyard b/doc/README.scrapyard
index 92ba1e4..48e94ab 100644
--- a/doc/README.scrapyard
+++ b/doc/README.scrapyard
@@ -12,6 +12,7 @@
 
 Board            Arch        CPU            Commit      Removed     Last known maintainer/contact
 =================================================================================================
+CRAYL1           powerpc     ppc4xx         -           -           David Updegraff <dave@cray.com>
 KAREF            powerpc     ppc4xx         -           -           Travis Sawyer <travis.sawyer@sandburst.com>
 METROBOX         powerpc     ppc4xx         -           -           Travis Sawyer <travis.sawyer@sandburst.com>
 PK1C20           nios2       -              70fbc461    2014-08-24  Scott McNutt <smcnutt@psyent.com>