Blackfin: bf527-ezkit-v2: move to boards.cfg

Now that the boards.cfg file supports options to mkconfig, we can move
the bf527-ezkit-v2 target out of the Makefile and into boards.cfg.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/MAKEALL b/MAKEALL
index 8ad7e92..db11f13 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -599,9 +599,7 @@
 ## Blackfin Systems
 #########################################################################
 
-LIST_blackfin="$(boards_by_arch blackfin)
-	bf527-ezkit-v2
-"
+LIST_blackfin="$(boards_by_arch blackfin)"
 
 #########################################################################
 ## SH Systems