zephyr test: Test SYV682 VBUS OC limit
zephyr test: Test SYV682 VBUS OC limit

Check that the driver refuses to enable VBUS after reach the limit of
VBUS over-current events.

BUG=b:190519131
TEST=zmake configure --test zephyr/test/drivers
BRANCH=none

Signed-off-by: Abe Levkoy <2e1ad7039298f93262cf06bbb457275fb3e2ecb5@chromium.org>
Change-Id: I2b223ff3342b4e8d51270f936fd3de2d8ab960fe
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3456707
Reviewed-by: Jeremy Bettis <4df7b5147fee087dca33c181f288ee7dbf56e022@chromium.org>
Commit-Queue: Jeremy Bettis <4df7b5147fee087dca33c181f288ee7dbf56e022@chromium.org>

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