setup-makefiles: Mirror changes in extract-files

Change-Id: I263ebde1f13926004efd5deada40b40d1f52614e
Signed-off-by: Paul Keith <javelinanddart@bestas.gr>

setup-makefiles.sh

@@ -42,9 +42,10 @@ while [ "$1" != "" ]; do
     shift
 done
 
+
 if [ -z "$TARGET" ]; then
-    echo "Warning, target for extraction not specified, defaulting to arm"
-    TARGET=arm
+    echo "Architecture for makefile setup not specified! Specify one with --target"
+    exit 1
 fi
 
 # Initialize the helper for common gapps