Change flashrom target selection parameter.

The "-p internal:bus=*" is now deprecated by "-p {host,ec}" because we may have
EC on SPI bus.

BUG=none
TEST=manually executed dev_debug_vboot and see correct output.
BRANCH=none

Change-Id: I6363c09c2ebf57812bf35b7db220303a2786db20
Reviewed-on: https://gerrit.chromium.org/gerrit/66321
Tested-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Yung-Chieh Lo <yjlou@chromium.org>
Commit-Queue: Hung-Te Lin <hungte@chromium.org>
4 files changed