Volteer: Add i2c_map.h

Map chip specific enums for i2c to the correct #defines expected
in platform/ec.

BUG=b:171302975
TEST=Build volteer and run i2cxfer r 9 0x50 0

Cq-Depend: chromium:2541622
Change-Id: Id5322bec184608a772d8752a4437b28128f1d97c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/zephyr-chrome/+/2537897
Commit-Queue: Yuval Peress <peress@chromium.org>
Tested-by: Yuval Peress <peress@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
1 file changed