ntp: upgrade to 4.2.8

* Upgrade to 4.2.8 which fixes several security issues, including
  CVE-2014-9293, CVE-2014-9294, CVE-2014-9295, and CVE-2014-9296. For
  more details please see:
  https://ics-cert.us-cert.gov/advisories/ICSA-14-353-01A


* LIC_FILES_CHKSUM changed due to a number of copyright year and patch
  list changes; nothing material about the license text changed.
* This version moves a number of binaries from sbindir to bindir;
  there's supposed to be a configure option --with-locfile=legacy to use
  the old layout but it does not seem to work. I guess we'll just have
  to live with the change.
* Drop patches which are no longer applicable.
* Merge inc file into recipe; there were too many changes required to
  the inc file in this version and it's unlikely it was much use split
  out in any case.
* Move remaining files in files/ to ntp/

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Joe MacDonald <joe_macdonald@mentor.com>