Update Osmocom recipes to latest tags (release 202102)

Change-Id: I1134998ca9d20c5f204b4770fa6bf18497a54402
diff --git a/recipes-osmocom/osmo-ggsn/osmo-ggsn_git.bb b/recipes-osmocom/osmo-ggsn/osmo-ggsn_git.bb
index a854384..be12988 100644
--- a/recipes-osmocom/osmo-ggsn/osmo-ggsn_git.bb
+++ b/recipes-osmocom/osmo-ggsn/osmo-ggsn_git.bb
@@ -1,9 +1,9 @@
 require ${PN}.inc
 
 S = "${WORKDIR}/git"
-SRCREV = "2154607fb06c9e4d1a286f40c756cdb4f792efdf"
-SRC_URI = "git://git.osmocom.org/osmo-ggsn                   \
+SRCREV = "1.7.1"
+SRC_URI = "git://git.osmocom.org/osmo-ggsn;protocol=git;tag=${SRCREV};nobranch=1 \
            file://libgtp-queue_depth_32.patch		    \
           "
-PV = "1.6.0+gitr${SRCPV}"
+PV = "1.7.1+gitr${SRCPV}"
 PR = "${INC_PR}.0"