HACK: Don't fail due to gec GET_BUILD_INFO command

The GET_BUILD_INFO command is currently broken. While it's nice to
have, we really only care about the GET_VERSION data for the
"mosys ec info" command. So for now, don't bail out if GET_BUILD_INFO

TEST=tested on Snow with affected EC firmware

localhost ~ # ectool version # shows nothing due to breakage

localhost ~ # ./mosys ec info -k
vendor="stm" name="stm32f100" fw_version="snow_v1.1.226-e95813c"

Change-Id: Ia62378a7bc8084bbcb39abd64114859fd5925b7a
1 file changed