liblogging: Clarify BSD license variant

The License of liblogging is BSD-2-Clause.

Signed-off-by: Christophe Priouzeau <christophe.priouzeau@st.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-extended/liblogging/liblogging_1.0.6.bb

@@ -8,7 +8,7 @@ sophisticated "behind the scenes" with better support for multiple threads \
 and flexibility for different log destinations (e.g. syslog and systemd \
 journal)."
 SECTION = "libs"
-LICENSE = "BSD"
+LICENSE = "BSD-2-Clause"
 LIC_FILES_CHKSUM = "file://COPYING;md5=63fe03535d83726f5655072502bef1bc"
 SRC_URI = "http://download.rsyslog.com/${BPN}/${BPN}-${PV}.tar.gz"