faft: Tune the ec_boot_to_console delay

This ec_boot_to_console delay is used to emulate a long recovery combo.
It should be a value between EC power-on and u-boot done. The previous
0.5s seems too long and u-boot may be done. Since EC power-on is ~0.15s.
This CL tunes it to 0.3s.

BUG=chrome-os-partner:15835
TEST=run_remote_tests --board link --remote dut DevMode/control.ec_wp

Change-Id: Ie70b53dcac01de127b4d21eecc580b86093c171a
Reviewed-on: https://gerrit.chromium.org/gerrit/38607
Reviewed-by: Vic Yang <victoryang@chromium.org>
Commit-Ready: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
diff --git a/server/cros/faft_delay_constants.py b/server/cros/faft_delay_constants.py
index e3f1278..1675aff 100644
--- a/server/cros/faft_delay_constants.py
+++ b/server/cros/faft_delay_constants.py
@@ -27,7 +27,7 @@
     # Delay for waiting client to return before sending EC reboot command
     ec_reboot_cmd = 1
     # Delay between EC boot and ChromeEC console functional
-    ec_boot_to_console = 0.5
+    ec_boot_to_console = 0.3
     # Delay between EC boot and pressing power button
     ec_boot_to_pwr_button = 0.5
     # Delay of EC software sync hash calculating time