Make programming script take the elf file as an argument

stm-firmware/program-device.sh

@@ -1,5 +1,10 @@
 #!/bin/bash
 
+if [[ -z $1 ]]; then
+	echo "Usage: $0 <ELF-file>"
+	exit -1
+fi
+
 JLinkGDBServer -if SWD -device STM32F407VE &
 sleep 2
 
@@ -12,7 +17,7 @@ if [[ $gdbpid == "" ]]; then
 	exit
 fi
 
-arm-none-eabi-gdb -x program-device.gdb reflow-controller.elf
+arm-none-eabi-gdb -x program-device.gdb $1
 sleep 2
 
 kill $gdbpid