factory_install: Change flashrom target selection parameters.

The "-p internal:bus=*" is deprecated by "-p host" and "-p ec" syntax,
especially that now EC may by connected by SPI bus.

BUG=none
TEST=Try to reset device and see flashrom results correctly.

Change-Id: Ibc6e83aae1492a7fd3b6df8da406a062192b74a5
Reviewed-on: https://gerrit.chromium.org/gerrit/66320
Tested-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Yung-Chieh Lo <yjlou@chromium.org>
Commit-Queue: Hung-Te Lin <hungte@chromium.org>
1 file changed