ppc4xx: remove some CPCI405 variants

only keep CPCI4052

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
diff --git a/doc/README.scrapyard b/doc/README.scrapyard
index 69daaab..9172f6c 100644
--- a/doc/README.scrapyard
+++ b/doc/README.scrapyard
@@ -12,6 +12,9 @@
 
 Board            Arch        CPU            Commit      Removed     Last known maintainer/contact
 =================================================================================================
+CPCI405          ppc4xx      405gp          -           -           Matthias Fuchs <matthias.fuchs@esd.eu>
+CPCI405DT        ppc4xx      405gpr         -           -           Matthias Fuchs <matthias.fuchs@esd.eu>
+CPCI405AB        ppc4xx      405gpr         -           -           Matthias Fuchs <matthias.fuchs@esd.eu>
 G2000            ppc4xx      405ep          -           -           Matthias Fuchs <matthias.fuchs@esd.eu>
 WUH405           ppc4xx      405ep          -           -           Matthias Fuchs <matthias.fuchs@esd.eu>
 VOH405           ppc4xx      405ep          -           -           Matthias Fuchs <matthias.fuchs@esd.eu>