Nami: Lock EC
Nami: Lock EC

This patch undefines CONFIG_SYSTEM_UNLOCKED to lock the system
and defines CONFIG_USB_PD_COMM_LOCKED to enables PD only if EC
is in RW.

Signed-off-by: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>

BUG=b:73250070
BRANCH=none
TEST=make BOARD=nami

Change-Id: I5877d2ff2f537b5db7e99c846f7fdb2232b88187
Reviewed-on: https://chromium-review.googlesource.com/1069215
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