zephyr: Define CONFIG_CHIP_PRE_INIT
zephyr: Define CONFIG_CHIP_PRE_INIT

This is not used on the Zephyr side. We can perhaps add a Kconfig
option to enable JTAG.

BUG=b:179809145
BRANCH=none
TEST=build for zephyr

Signed-off-by: Simon Glass <c00b0378376498bd9cd974c388df8854c0131d27@chromium.org>
Change-Id: I6e06233bfb690c6c1b3ec72bcde55b2cb2d94a50
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2686247
Reviewed-by: Keith Short <f6d578f97033c25f1206cb57d52f358974c82954@chromium.org>

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