Without this, we see this line when running flash_ec.
util/flash_ec: line 787: [: =~: binary operator expected
These kind of tests require double brackets.
BUG=b:77825616
BRANCH=none
TEST=run util/flash_ec using servo_micro on staff.
Change-Id: I6baecec2252276ac06992fd2b2e50f74d55805f2
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1018560
Reviewed-by: Mary Ruthven <mruthven@chromium.org>