[valgrind/f20] (4 commits) ...3.8.1-27

[Mark Wielaard]

Summary of changes:

  ff35c12... Fix power_ISA2_05 testcase valgrind-3.8.1-power-isa-205-dep (*)
  764c7c4... Fix ppc32 make check build (valgrind-3.8.1-initial-power-is (*)
  d3173fc... Add valgrind-3.8.1-mmxext.patch. (*)
  e7fbf7c... 3.8.1-27 (*)

(*) This commit already existed in another branch; no separate mail sent