Parasite is 64-bit and if we want to check if vma is vDSO,
we need to link parasite blob with util-vdso-elf32.
But luckely, there is no need to do that: mremap() for
compat vDSO works only after v4.8 kernel:
  commit b059a453b1cf ("x86/vdso: Add mremap hook to vm_special_mapping").

And in those kernels "[vdso]" is always reported in /proc/.../maps
rightly - so no need to check that.

travis-ci: success for Rectify 32-bit compatible C/R on x86
Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>