Update Osmocom recipes to latest tags (release 201908)

Change-Id: I1b06cbd9998660951d33a011726d86ae288fc7b9
diff --git a/recipes-osmocom/openbsc/openbsc_git.bb b/recipes-osmocom/openbsc/openbsc_git.bb
index 7dbb07a..c9b75e8 100644
--- a/recipes-osmocom/openbsc/openbsc_git.bb
+++ b/recipes-osmocom/openbsc/openbsc_git.bb
@@ -1,10 +1,10 @@
 require ${PN}.inc
 
-PV = "1.2.0+gitr${SRCPV}"
+PV = "1.3.1+gitr${SRCPV}"
 PRINC = "0"
 PR = "${INC_PR}.0"
 
-SRCREV = "ed8815e723b41e9800f14c67bccd34e51a06beb6"
+SRCREV = "bb414bf8b104e1b56e61bb804c75d30cda2a9e3c"
 SRC_URI += "git://git.osmocom.org/openbsc.git;protocol=git"
 
 S = "${WORKDIR}/git/openbsc"