Be smarter about config generator default package name

Using python setup.py --name instead of the current working
directory will allow the config generator to work correctly by
default even if the local source tree was cloned into a directory
that doesn't match the project name.

Change-Id: Iea529e7e691d94402f658e7095387dc3e98e32fe
Closes-Bug: #1288417

tools/config/generate_sample.sh

@@ -65,7 +65,7 @@ then
     BASEDIR=$(cd "$BASEDIR" && pwd)
 fi
 
-PACKAGENAME=${PACKAGENAME:-${BASEDIR##*/}}
+PACKAGENAME=${PACKAGENAME:-$(python setup.py --name)}
 TARGETDIR=$BASEDIR/$PACKAGENAME
 if ! [ -d $TARGETDIR ]
 then