openct: Fix rootfs creation errors

To fix error as following:
    file /var/run from install of openct-0.6.20-r0
    conflicts with file from package base-files-3.0.14

Signed-off-by: Dai Caiyun <daicy.fnst@cn.fujitsu.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-support/openct/openct_0.6.20.bb

@@ -55,6 +55,9 @@ FILES_${PN}-dbg += " \
 
 INSANE_SKIP_${PN} += "dev-deps"
 
+do_install_append() {
+    rm -r ${D}/${localstatedir}/run
+}
 
 do_install () {
     rm -rf ${D}