deb: install python scripts from contrib/

Add .py scripts from contrib/ to osmo-nitb.deb package.

Change-Id: I852815f348ae330980b186e1ddbc78f18f4f42b5
Related: SYS#3028
diff --git a/debian/osmocom-nitb.install b/debian/osmocom-nitb.install
index 6bb2171..26caf71 100644
--- a/debian/osmocom-nitb.install
+++ b/debian/osmocom-nitb.install
@@ -1 +1,2 @@
 /usr/bin/osmo-nitb
+openbsc/contrib/*.py usr/bin/
\ No newline at end of file