Cirque touch firmware updater script

Added a log message to show the PID of the device whose firmware is being updated.

BUG=b:410879833
TEST=/opt/google/touch/scripts/chromeos-touch-update.sh

Change-Id: Icd168c2c30fe134545b1d6c27476392ef156e146
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/touch_updater/+/6476474
Tested-by: Vadim Klishko <vadim@cirque.com>
Commit-Queue: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Vadim Klishko <vadim@cirque.com>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Sean O'Brien <seobrien@chromium.org>
diff --git a/scripts/chromeos-cirque-touch-firmware-update-legacy.sh b/scripts/chromeos-cirque-touch-firmware-update-legacy.sh
index cc0548e..7744e8f 100755
--- a/scripts/chromeos-cirque-touch-firmware-update-legacy.sh
+++ b/scripts/chromeos-cirque-touch-firmware-update-legacy.sh
@@ -154,6 +154,7 @@
   if [ ! -c "${dev_path}" ]; then
     die "Unable to find Cirque device file."
   fi
+  log_msg "Updating Cirque device with product ID ${FLAGS_device_pid}"
 
   active_fw_ver="$(get_active_fw_version "${dev_path}")"
   report_initial_version "${FLAGS_device_path}" "Cirque" "${active_fw_ver}"