jenkins: pass proper configure flags to make distcheck

Enable various components according to the build matrix during make distcheck.
Add python tests, osmo-bsc, nat, ...

Change-Id: Ic724cf61d44409337414dc58c8795896b4b97a8a

contrib/jenkins.sh

@@ -48,5 +48,7 @@ autoreconf --install --force
 $MAKE $PARALLEL_MAKE
 LD_LIBRARY_PATH="$inst/lib" $MAKE check \
   || cat-testlogs.sh
-LD_LIBRARY_PATH="$inst/lib" $MAKE distcheck \
+LD_LIBRARY_PATH="$inst/lib" \
+  DISTCHECK_CONFIGURE_FLAGS="--enable-osmo-bsc --enable-nat $SMPP $MGCP $IU --enable-vty-tests --enable-external-tests" \
+  $MAKE distcheck \
   || cat-testlogs.sh