shill: Add 802.1x Key Management property

This is useful when specifying 802.1x WEP (Enterprise WEP).

BUG=chromium:551085
TEST=Build shill

Change-Id: I278bbb21edb0f871dcea5be242f04a931a47076a
Reviewed-on: https://chromium-review.googlesource.com/310644
Commit-Ready: Paul Stewart <pstew@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
1 file changed