[LTP] [PATCH v6 ltp] Add Intel umip(User Mode Instruction Prevention) basic function tests

[Cyril Hrubis]

Hi!
Pushed with a few changes, thanks!

* added the kconfig requirement to the tst_test structure
* the whole test is now in #ifdef __x86_64__
  (otherwise the asm statements would fail to compile on other
  architectures)
* moved the runtest entry to kernel_misc
  (in order to avoid having runtest files with just one entry)

-- 
Cyril Hrubis
chrubis@suse.cz