vpp-python-api deb packaging - use easy_install to install the python api

Change-Id: I67963d5a6ec324b13c50f8f6c51ed3c715b4c145
Signed-off-by: Gabriel Ganne <gabriel.ganne@qosmos.com>
diff --git a/build-root/deb/debian/vpp-python-api.postinst b/build-root/deb/debian/vpp-python-api.postinst
new file mode 100644
index 0000000..ca1c856
--- /dev/null
+++ b/build-root/deb/debian/vpp-python-api.postinst
@@ -0,0 +1,5 @@
+#!/bin/sh -e
+
+# after installing python-api files
+python2_sitedir=$(python -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())")
+easy_install --install-dir=$python2_sitedir  -z $python2_sitedir/vpp_papi/vpp_papi-*.egg