faft: Use better names for key-pressing methods and remove Space support

This CL renames send_xxx_to_dut() to press_xxx(), more readable. And remove
the Space key support since we now use Enter as an alternative key by
setting the GBB flag ENTER_TRIGGERS_TONORM.

BUG=chromium-os:35792
TEST=run_remote_tests.sh --board link --remote dut suite:faft

Change-Id: Ibdb5a0c88fe7752600773f6d32052750eedd6e9b
Reviewed-on: https://gerrit.chromium.org/gerrit/36767
Commit-Ready: Tom Wai-Hong Tam <waihong@chromium.org>
Reviewed-by: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
4 files changed