stm32mon: don't set UART attributes when programming over Cr50

When EC console is connected over a Cr50 UART to USB bridge, there is
no need to try setting up UART properties of the interface device as
in this case the settings will not propagate to the target.

BRANCH=none
BUG=b:62539385
TEST=connect a Scarlet device over SuzyQ to the host and source the
     following script:

  vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
  echo gpioset EC_FLASH_SELECT 1 > /dev/ttyUSB0
  echo bitbang 2 57600 even > /dev/ttyUSB0
  echo ecrst pulse > /dev/ttyUSB0
  sleep 2
  <path to>/stm32mon -d /dev/ttyUSB2 -u -U -e -c -w <path to>/ec.bin
  echo gpioset EC_FLASH_SELECT 0 > /dev/ttyUSB0
  echo bitbang 2 disable > /dev/ttyUSB0
  echo ecrst pulse > /dev/ttyUSB0
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Change-Id: I5feeaffbc25c029fe6b5d8fa712d5927d00e26ce
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1175317
Reviewed-by: Mary Ruthven <mruthven@chromium.org>

0 files changed, 0 insertions, 0 deletions