volteer: Disable accel commands on Zephyr
volteer: Disable accel commands on Zephyr

Disable accel commands on Zephyr to match the Chromium EC configuration.

BUG=b:181794644
BRANCH=none
TEST=make buildall, zmake testall
TEST=Boot zephyr-ec on Volteer

Signed-off-by: Keith Short <f6d578f97033c25f1206cb57d52f358974c82954@chromium.org>
Change-Id: Ia407f125dc55c1af05b11e14fc81534ee44e1d7f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2737536
Commit-Queue: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>
Reviewed-by: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>
Reviewed-by: Yuval Peress <50dc11c009bd4d7e9d9d15a383c1743ce5ee82ef@chromium.org>

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