Import systemd support patches from RSA

     - Fix post section.

       Remove dlog-util's post file creation, move into install section.

       Signed-off-by: William Douglas <william.douglas@intel.com>

     - add systemd unit files

       Signed-off-by: William Douglas <william.douglas@intel.com>

     - Fix initscript symlinks

       [ Author: Patrick McCarty <patrick.mccarty@linux.intel.com> ]

    Bastardized-by: Karol Lewandowski <k.lewandowsk@samsung.com>