zephyr: Villager: Change the period value to use msec
zephyr: Villager: Change the period value to use msec

This patch defines the blinking period in terms of msec.

BRANCH=none
BUG=b:229744810
TEST=zmake build -a, test on Lazor

Signed-off-by: Parth Malkan <c3d09dcbffc3a0a63125afed46f55e5cbf5bb3a9@google.com>
Cq-Depend: chromium:3594244
Change-Id: I47b250225b069001685a36d40b4c8f2229be9b24
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3594246
Reviewed-by: Wai-Hong Tam <04b587fdf5845741a0c5a8b9cd59ca72d73ef8fc@google.com>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec