[mellanox] Fix FW utils review comments

Signed-off-by: Nazarii Hnydyn <nazariig@mellanox.com>

platform/mellanox/mlnx-fw-upgrade.j2

@@ -132,11 +132,13 @@ function ShowProgressBar() {
  return "${EXIT_SUCCESS}"
  fi
 
+ # Print progress bar: use carriage return to overwrite command line content
  for i in "${SPIN[@]}"; do
  echo -ne "\r[${i}] ${1}"
  sleep 0.5s
  done
 
+ # Clear command line content + carriage return
  echo -ne "\033[1K\r"
 }
 
@@ -219,7 +221,7 @@ function UpgradeCPLDFW_Worker() {
  local -r _CPLD_REFRESH_FILE="${2}"
  local -r _ASIC_DEV="$(find /dev/mst -iname '*_pciconf0')"
 
- if [[ "${UPDATE_MLNX_CPLD_FW}" = "1" ]]; then
+ if [[ -f /tmp/cpld_fw_updated ]]; then
  RunCmd "cpldupdate --dev ${_ASIC_DEV} ${_CPLD_REFRESH_FILE}"
  return "${EXIT_SUCCESS}"
  fi
@@ -231,7 +233,7 @@ function UpgradeCPLDFW_Worker() {
 function UpgradeCPLDFW() {
  local -r _CPLD_ARCHIVE="$1"
 
- if [[ "${UPDATE_MLNX_CPLD_FW}" = "1" ]]; then
+ if [[ -f /tmp/cpld_fw_updated ]]; then
  LogWarning "forced CPLD refresh was requested for ${ONIE_PLATFORM}"
  CPLD_UPGRADE="${YES_PARAM}"
  fi