debian: Correct the path for the binaries.
diff --git a/openbsc/debian/osmocom-sgsn.install b/openbsc/debian/osmocom-sgsn.install
index 4e86e0b..d89c456 100644
--- a/openbsc/debian/osmocom-sgsn.install
+++ b/openbsc/debian/osmocom-sgsn.install
@@ -1 +1 @@
-/usr/sbin/osmo-sgsn
+/usr/bin/osmo-sgsn