travis: Read project/organization for SonarCloud from environment variable

scripts/test.sh

@@ -448,7 +448,8 @@ apidoc)
 	;;
 sonarcloud)
 	sonar-scanner \
-		-Dsonar.projectKey=strongswan \
+		-Dsonar.projectKey=${SONAR_PROJECT} \
+		-Dsonar.organization=${SONAR_ORGANIZATION} \
 		-Dsonar.projectVersion=$(git describe)+${TRAVIS_BUILD_NUMBER} \
 		-Dsonar.sources=. \
 		-Dsonar.cfamily.threads=2 \