set up osmocom recipes to current git master

This is for the upcoming 201705 release.
diff --git a/recipes-osmocom/libosmocore/libosmocore_git.bb b/recipes-osmocom/libosmocore/libosmocore_git.bb
index e482f8c..964dea2 100644
--- a/recipes-osmocom/libosmocore/libosmocore_git.bb
+++ b/recipes-osmocom/libosmocore/libosmocore_git.bb
@@ -1,11 +1,13 @@
 require ${PN}.inc
 
 S = "${WORKDIR}/git"
-SRCREV = "70fcbda6dd733a503e9a046e01986d8bfc2e2bb2"
+SRCREV = "a8a8d3977dc3b31352f8a87ca005763677bd7e8c"
 SRC_URI = "git://git.osmocom.org/libosmocore.git;protocol=git;nobranch=1"
 PV = "0.9.0+gitr${SRCPV}"
 PR = "r1"
 
+DEPENDS += "libtalloc"
+
 PACKAGES =+ "libosmoctrl libosmocodec libosmogb libosmogsm libosmovty osmo-arfcn osmo-auc-gen"
 FILES_libosmoctrl = "${libdir}/libosmoctrl${SOLIBS}"
 FILES_libosmocodec = "${libdir}/libosmocodec${SOLIBS}"