libosmocore: Upgrade git to after the 0.4.1 release

In this git version LAPDm is fixed in a way that it is working
for the osmo-bts again.
diff --git a/recipes-osmocom/libosmocore/libosmocore_git.bb b/recipes-osmocom/libosmocore/libosmocore_git.bb
index 41fae84..d3428ec 100644
--- a/recipes-osmocom/libosmocore/libosmocore_git.bb
+++ b/recipes-osmocom/libosmocore/libosmocore_git.bb
@@ -1,7 +1,7 @@
 require ${PN}.inc
 
 S = "${WORKDIR}/git"
-SRCREV = "301f01e938e72423079afe1a1836937053481fd6"
+SRCREV = "3a5f08c221b32381623e50095de2751183e994c4"
 SRC_URI = "git://git.osmocom.org/libosmocore.git;protocol=git"
 PV = "0.4.1+gitr${SRCPV}"
-PR = "1"
+PR = "0"