test: run 'md' command with and without [count] arg
test: run 'md' command with and without [count] arg

Check that the 'md' console command runs successfully both with and
without the count argument

BRANCH=none
BUG=b:242910040
TEST=twister -s zephyr/test/drivers/drivers.default

Change-Id: I0875f900840be325aa302bca27e0f426aeb7e022
Signed-off-by: Yuval Peress <50dc11c009bd4d7e9d9d15a383c1743ce5ee82ef@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3847010
Reviewed-by: Aaron Massey <79529a820df71f45023239a3663736629646cc34@google.com>
Reviewed-by: Abe Levkoy <2e1ad7039298f93262cf06bbb457275fb3e2ecb5@chromium.org>
Code-Coverage: Zoss <345cf107e82c70959d46f59d98bddc98ce458aff@prod.google.com>

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