added linux32 versions of stm32flash and stlink binaries and used scripts from OSX for these in linux as the scripts are identical

Author: rogerclarkmelbourne

tools/linux/serial_upload

@@ -0,0 +1,2 @@
+#!/bin/bash
+$(dirname $0)/stm32flash/stm32flash -g 0x8000000 -b 230400 -w "$4" /dev/"$1" 

tools/linux/stlink/st-flash

@@ -0,0 +1,2 @@
+#!/bin/bash
+$(dirname $0)/stlink/st-flash write "$4" 0x8000000