openggsn_git: Upgrade to the latest git revision

This version includes a libgtp.pc that is required to compile the
osmo-sgsn.
diff --git a/recipes-osmocom/openggsn/openggsn_git.bb b/recipes-osmocom/openggsn/openggsn_git.bb
index 0867a14..9b15d9f 100644
--- a/recipes-osmocom/openggsn/openggsn_git.bb
+++ b/recipes-osmocom/openggsn/openggsn_git.bb
@@ -4,7 +4,7 @@
 PV = "0.91+gitr${SRCPV}"
 PR = "r10"
 
-SRCREV = "fe5040967513616731d8151b22d26bdf74d65111"
+SRCREV = "95848bafcef145d776d70a73f7bdc3fe37e85724"
 SRC_URI = "git://ggsn.git.sourceforge.net/gitroot/ggsn/ggsn \
            file://openggsn.init                             \
           "