Update security support command to use types.

In order for us to be able to check available security
types across all of the APs we can't rely on the webdriver
strings as they are unique.  We now have a new set of
variables that we can use.

BUG=None
TEST=Manual

Change-Id: I06b4a082b4fe1f7ba9d9b7faa844d4e12398257c
Reviewed-on: https://gerrit.chromium.org/gerrit/42911
Tested-by: Kris Rambish <krisr@chromium.org>
Reviewed-by: Deepak Gopal <deepakg@chromium.org>
5 files changed