openl2tp: update systemd service file

It shows an warning of openl2tp in systemd log:

| /lib/systemd/system/openl2tpd.service:8: PIDFile= references a path
| below legacy directory /var/run/, updating /var/run/openl2tpd.pid →
| /run/openl2tpd.pid; please update the unit file accordingly.

Update the systemd service file to fix the warning.

Update SRC_URI as well that the homepage openl2tp.org has been closed.
Use archived file on sourceforge instead.

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-networking/recipes-protocols/openl2tp/openl2tp/openl2tpd.service

@@ -5,7 +5,7 @@ Requires=rpcbind.service
 
 [Service]
 Type=forking
-PIDFile=@STATEDIR@/run/openl2tpd.pid
+PIDFile=/run/openl2tpd.pid
 EnvironmentFile=@SYSCONFDIR@/default/openl2tpd
 ExecStartPre=@BASE_BINDIR@/sh -c "@BASE_SBINDIR@/modprobe -sq l2tp_ppp || @BASE_SBINDIR@/modprobe -sq pppol2tp"
 ExecStart=@SBINDIR@/openl2tpd $OPENL2TPDARGS

meta-networking/recipes-protocols/openl2tp/openl2tp_1.8.bb

@@ -18,7 +18,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=e9d9259cbbf00945adc25a470c1d3585 \
 
 DEPENDS = "popt flex readline rpcsvc-proto-native bison-native"
 
-SRC_URI = "ftp://ftp.openl2tp.org/releases/${BP}/${BP}.tar.gz \
+SRC_URI = "${SOURCEFORGE_MIRROR}/${BPN}/${PV}/${BP}.tar.gz \
            file://Makefile-modify-CFLAGS-to-aviod-build-error.patch \
            file://openl2tp-simplify-gcc-warning-hack.patch \
            file://Makefile-obey-LDFLAGS.patch \