net-snmp: move persistent dir to /var/lib/net-snmp

Move persistent dir to /var/lib/net-snmp and fix security contexts for
them.

Signed-off-by: Wenzong Fan <wenzong.fan@windriver.com>
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Joe MacDonald <joe_macdonald@mentor.com>

meta-networking/recipes-protocols/net-snmp/files/init

@@ -28,6 +28,8 @@ case "$1" in
 	echo -n " snmptrapd"
     fi
     echo "."
+
+    test ! -x /sbin/restorecon || /sbin/restorecon -FR /var/lib/net-snmp
     ;;
   stop)
     echo -n "Stopping network management services:"

meta-networking/recipes-protocols/net-snmp/net-snmp_5.7.2.1.bb

@@ -38,6 +38,7 @@ EXTRA_OECONF = "--disable-embedded-perl \
                 --enable-shared \
                 --disable-manuals \
                 --with-defaults \
+                --with-persistent-directory=${localstatedir}/lib/net-snmp \
                 ${@base_conditional('SITEINFO_ENDIANNESS', 'le', '--with-endianness=little', '--with-endianness=big', d)}"
 
 # net-snmp needs to have mib-modules=smux enabled to enable quagga to support snmp