HostapConfig refactor

Refactor HostapConfig class to have it generate config dictionary. Updated variables' name scope to internal when possible.

BUG=chromium:347346
TEST=Run full wifi_matfunc test suite.

Change-Id: Ibbfce87fc25b57da3e411517d5da7a0e9e77aa73
Reviewed-on: https://chromium-review.googlesource.com/188169
Tested-by: Peter Qiu <zqiu@chromium.org>
Reviewed-by: Christopher Wiley <wiley@chromium.org>
Commit-Queue: Peter Qiu <zqiu@chromium.org>
2 files changed