This commit adds testing support for the following instructions:
  vaddcuq, vadduqm, vaddecuq, vaddeuqm,
  vsubcuq, vsubuqm, vsubecuq, vsubeuqm,
  vbpermq and vgbbd.

The completes adding the Power ISA 2.07 support.

Bugzilla 325816

VEX commit id 2790


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13653 a5019735-40e9-0310-863c-91ae7b9d1cf9