Update dediprog package URL

The old one no longer returns a valid archive.
Update the configuration extraction for the new archive structure.

BUG=chromium-os:31625
TEST=make

Change-Id: I8db1cc163896d0d63e6dacec4efbd72aff79865e
diff --git a/makechips.sh b/makechips.sh
index 6282992..753bd59 100755
--- a/makechips.sh
+++ b/makechips.sh
@@ -16,7 +16,7 @@
 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 #
 
-URL=http://www.dediprog.com/files/81/2715/4/EM100_4.2.04.zip
+URL=http://www.dediprog.com/files/81/2867/4/EM100_4.2.07.zip
 
 if ! which curl > /dev/null; then
   echo "Install curl to run this script."
@@ -40,8 +40,7 @@
 curl -s $URL -o $FILE || exit
 echo Unpacking...
 7z x $FILE ${FILE%.zip}.msi > /dev/null
-7z x ${FILE%.zip}.msi WixDediEM100Setup.cab > /dev/null
-cabextract -F PRO_* WixDediEM100Setup.cab > /dev/null
+7z x ${FILE%.zip}.msi PRO_* > /dev/null
 echo  Copying...
 mkdir -p $WD/configs
 for i in PRO_*; do