lscpu: add cpu polarization to parseable output

lscpu: add cpu polarization to parseable output

When running in different dispatching mode the virtual cpus may
have different polarizations.
E.g. in "vertical" mode cpus may have a polarization of "vertical:high"
which means the virtual cpu has dedicated physical cpu assigned.
Print this information in the parsable output.

Note that this breaks the current rule that
a) the parseable output contains only numbers
b) these numbers are equal or increased in each line

Since however this new item must be selected with the "list" argument
this shouldn't be a problem.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>