update PV versions for libosmocore, libosmo-sccp and openggsn

As we're building git master, we need to make sure PV is not lagging
behind.  I wish there was some OE magic by which it could discover
PV from the source it builds.

Change-Id: Ib45238e95156f215412d51d975b1acb33633a3e1
diff --git a/recipes-osmocom/libosmocore/libosmocore_git.bb b/recipes-osmocom/libosmocore/libosmocore_git.bb
index c8a794c..5d702a3 100644
--- a/recipes-osmocom/libosmocore/libosmocore_git.bb
+++ b/recipes-osmocom/libosmocore/libosmocore_git.bb
@@ -3,7 +3,7 @@
 S = "${WORKDIR}/git"
 SRCREV = "657c5b6cadcef470c7ff9bffed3caab227026e6a"
 SRC_URI = "git://git.osmocom.org/libosmocore.git;protocol=git;nobranch=1"
-PV = "0.9.0+gitr${SRCPV}"
+PV = "0.9.6+gitr${SRCPV}"
 PR = "r0"
 
 DEPENDS += "libtalloc"