Support for flashing Olimex STM32-E407 with STLINK v2 debuggers (#374) (#377)

(cherry picked from commit ae44150)

Co-authored-by: Bhavesh Kakwani <67327096+bhavesh-sr@users.noreply.github.com>

Author: mergify[bot]

config/freertos/olimex-stm32-e407/flash.sh

@@ -11,6 +11,10 @@ pushd $OLIMEX_EXTENSIONS_DIR > /dev/null
         PROGRAMMER=interface/ftdi/olimex-arm-usb-ocd.cfg
       elif lsusb -d 15BA:002b;then
         PROGRAMMER=interface/ftdi/olimex-arm-usb-ocd-h.cfg
+      elif lsusb -d 0483:374b; then
+        PROGRAMMER=interface/stlink-v2-1.cfg
+      elif lsusb -d 0483:3748; then
+        PROGRAMMER=interface/stlink-v2.cfg
       else
         echo "Error. Unsuported OpenOCD USB programmer"
         exit 1