Nami: Add new LED behavior for factory mode
Nami: Add new LED behavior for factory mode

The factory mode is indicated by blue on for 2sec & amber on for 2sec.

BUG=none
BRANCH=firmware-nami-10775.B
TEST=Check charge led is blue on 2sec Amber on 2sec when factory testing

Change-Id: Ifc3786151ccef29e709587f8f5b3d3306a6b344f
Signed-off-by: Sue Chen <7d23cdcf270f71747b77aeecc793a9342f6d5c9e@quanta.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/1351512
Commit-Ready: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>
Tested-by: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>
Reviewed-by: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>

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