Activate the p2 tooling repo if the tooling profile is selected.

* The file-based activation does not work on jenkins, maybe due to the
  use of the full path.

Issue-Ref: 3620
Issue-Url: https://af3-developer.fortiss.org/issues/3620


Signed-off-by: Alexander Diewald <diewald@fortiss.org>

releng/org.fortiss.af3.configuration/pom.xml

@@ -57,9 +57,9 @@
     <profile>
       <id>tooling-p2-local</id>
       <activation>
-        <file>
-          <exists>file:///${user.dir}/releng/org.fortiss.tooling.update/target/repository/</exists>
-        </file>
+        <property>
+          <name>!tooling</name>
+        </property>
       </activation>
       <repositories>
         <repository>