hdctools: servo: Add Daisy overlay to support EC controlled switches

The overlay setting is copied from a subset of Link's. It provides the
following servo functions:
kbd_en
kbd_m1_a0
kbd_m1_a1
kbd_m2_a0
kbd_m2_a1

BUG=chrome-os-partner:11748
TEST=manual
$ sudo servod -b daisy
$ dut-control kbd_en kbd_m1_a0 kbd_m1_a1 kbd_m2_a0 kbd_m2_a1

Change-Id: If333aeffa998fff6964a26dc8f0e8d72a4369946
Reviewed-on: https://gerrit.chromium.org/gerrit/28351
Reviewed-by: Vic Yang <victoryang@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
Commit-Ready: Tom Wai-Hong Tam <waihong@chromium.org>
1 file changed