mtr: update to 0.86

* Newer automake compatibility fixed upstream, so drop patches.
* LIC_FILES_CHKSUM changed due to a trailing space being removed, no
  actual change to the license text.

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>