osmocom: Fix the license of the libraries

GPL is too unspecific, point to the right versions
diff --git a/recipes-osmocom/libosmo-abis/libosmo-abis.inc b/recipes-osmocom/libosmo-abis/libosmo-abis.inc
index acfe526..ddc1275 100644
--- a/recipes-osmocom/libosmo-abis/libosmo-abis.inc
+++ b/recipes-osmocom/libosmo-abis/libosmo-abis.inc
@@ -2,7 +2,7 @@
 DEPENDS = "libosmocore ortp"
 DEPENDS_append_geode = "dahdi-linux"
 HOMEPAGE = "http://openbsc.gnumonks.org"
-LICENSE = "GPL"
+LICENSE = "AGPLv3"
 
 INC_PR="r2.${META_TELEPHONY_OSMO_INC}"
 
diff --git a/recipes-osmocom/libosmo-sccp/libosmo-sccp.inc b/recipes-osmocom/libosmo-sccp/libosmo-sccp.inc
index 0a8e663..0b4ae81 100644
--- a/recipes-osmocom/libosmo-sccp/libosmo-sccp.inc
+++ b/recipes-osmocom/libosmo-sccp/libosmo-sccp.inc
@@ -1,7 +1,7 @@
 DESCRITOPN = "An utility library for Open Source Mobile Communications"
 DEPENDS = "libosmocore"
 HOMEPAGE = "http://openbsc.gnumonks.org"
-LICENSE = "GPL"
+LICENSE = "AGPLv3"
 
 INC_PR="r1.${META_TELEPHONY_OSMO_INC}"
 
diff --git a/recipes-osmocom/libosmocore/libosmocore.inc b/recipes-osmocom/libosmocore/libosmocore.inc
index 6e091ef..c0dba30 100644
--- a/recipes-osmocom/libosmocore/libosmocore.inc
+++ b/recipes-osmocom/libosmocore/libosmocore.inc
@@ -1,6 +1,6 @@
 DESCRITOPN = "An utility library for Open Source Mobile Communications"
 HOMEPAGE = "http://openbsc.gnumonks.org"
-LICENSE = "GPL"
+LICENSE = "GPLv2+"
 
 INC_PR="r1.${META_TELEPHONY_OSMO_INC}"
 
diff --git a/recipes-osmocom/openbsc/openbsc.inc b/recipes-osmocom/openbsc/openbsc.inc
index f60da86..1f71e4d 100644
--- a/recipes-osmocom/openbsc/openbsc.inc
+++ b/recipes-osmocom/openbsc/openbsc.inc
@@ -1,7 +1,7 @@
 DESCRITOPN = "OpenBSC a Free Software GSM BaseStationController"
 DEPENDS = "libdbi libosmocore libosmo-sccp libosmo-abis openggsn"
 HOMEPAGE = "http://openbsc.osmocom.org/"
-LICENSE = "AGPLv3"
+LICENSE = "AGPLv3+"
 LIC_FILES_CHKSUM = "file://COPYING;md5=73f1eb20517c55bf9493b7dd6e480788"
 
 RDEPENDS_osmo-nitb = "libdbd-sqlite3"