Add AcTux board support

Hi,

The patch adds 4 boards, called AcTux-1 .. AcTux-4. This patch contains the
files that
contain changes for multiple boards, the board-specific files follow as
separate patches.

Signed-off-by: Michael Schwingen <michael@schwingen.org>
diff --git a/MAKEALL b/MAKEALL
index c9bd5e1..c4731ea 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -520,6 +520,10 @@
 "
 
 LIST_ixp="		\
+	actux1		\
+	actux2		\
+	actux3		\
+	actux4		\
 	ixdp425		\
 	ixdpg425	\
 	pdnb3		\