bump required libosmocore version to 0.9.5

0.9.5 tags the version from which on DLGSUP is properly handled in
libosmocore's internal logging.

This bump follows up on previous osmo-hlr change
I74ab1a031d1ed144468b016294d2965eba5e7d1d.

Change-Id: I2af7a9eff3f116bd3bd02edd42e6e0a64f8280cd
diff --git a/configure.ac b/configure.ac
index ce0010c..3ac99c7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -28,7 +28,7 @@
 
 PKG_CHECK_MODULES(TALLOC, [talloc >= 2.0.1])
 
-PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 0.9.0)
+PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 0.9.5)
 PKG_CHECK_MODULES(LIBOSMOGSM, libosmogsm >= 0.9.0)
 PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 0.9.0)
 PKG_CHECK_MODULES(LIBOSMOABIS, libosmoabis >= 0.3.2)