scripts/upstart/*: fix instance variable syntax

scripts/upstart/etc/init/bpm-sw.conf

@@ -17,9 +17,9 @@ respawn
 # upstart manages PID creation for you.
 expect fork
 
-env INSTANCE=0000
+instance $BOARD
 
 script
 # My startup script, plain old shell scripting here.
-exec /usr/local/bin/ebpm -f /usr/local/etc/bpm_sw/bpm_sw.cfg -n be -t pcie -i $INSTANCE -e /dev/fpga/$INSTACE -s 0 -b tcp://127.0.0.1:8978 -l /media/remote_logs
+exec /usr/local/bin/ebpm -f /usr/local/etc/bpm_sw/bpm_sw.cfg -n be -t pcie -i $BOARD -e /dev/fpga/$BOARD -s 0 -b tcp://127.0.0.1:8978 -l /media/remote_logs
 end script