HACK: v3/ec: Disable SOM_FPGA_DONE watchdog

There is a bug(b/182420309) that shuts off the fpga despite it
working just fine (D18 lights up). In order to unblock fpga
development temporarly disable this "watchdog" until we fix the bug.

BUG=b/182420309
TEST=With https://chrome-internal-review.googlesource.com/c/chromeos/platform/chameleon-private-ite/+/3564743
And with a working fpga module, type this on the ec console:
	sd fpga
	fpga bootmode sdio
	fpga on
FPGA should not shutdown after 1 min.

Change-Id: Ia2f5ade0b556e0ce36b608435e98bf73a6ee0404
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/chameleon/+/2753452
Tested-by: Alexandru M Stan <amstan@chromium.org>
Auto-Submit: Alexandru M Stan <amstan@chromium.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Commit-Queue: Alexandru M Stan <amstan@chromium.org>
1 file changed