__main__.py: made WMI unified default
__main__.py: made WMI unified default

Removed -u | --wmi-unified option and made unified WMI the default
config.

Introduced new option: --wmi-old that can be used to select the
"old" (ath6kl) wmi version.

Signed-off-by: Erik Stromdahl <bceaca8caa2900989bb30a1257212196c3d2e7c8@gmail.com>

erstrom/qca-hex-analyzer