Tracking cpuid features is easier when sync'ed with kernel
source code. Note though that while in kernel feature bits
are not part of ABI, we're saving bits into an image so
as result make sure they are posted in proper place together
with keeping in mind the backward compatibility issue.

Here we also start using v2 of cpuinfo image with more
feature bits.
Reviewed-by: Dmitry Safonov <0x7f454c46@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>