Bump version: 1.1.0-dirty → 1.1.1

Patch release to have debian/patches/build-for-debian8.patch applying
correctly again.

Change-Id: I27caf077abc400e9661549886bb8f7827dd299bb
diff --git a/debian/changelog b/debian/changelog
index c88b703..96cd208 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+osmo-trx (1.1.1) unstable; urgency=medium
+
+  * UNRELEASED
+
+ -- Pau Espin Pedrol <pespin@sysmocom.de>  Thu, 08 Aug 2019 13:00:05 +0200
+
 osmo-trx (1.1.0) unstable; urgency=medium
 
   [ Sylvain Munaut ]