Added make target for shutting down the connected P4wnP1

Makefile

@@ -1,4 +1,4 @@
-.PHONY: sync run ready exec all stop
+.PHONY: sync run ready exec all stop shutdown
 
 TARGET = [email protected]
 PASSWD = toor
@@ -40,5 +40,9 @@ stop:
 	-@pkill key_extendr 
 	@echo "[i] Stopped all running jobs"
 
+shutdown:
+	-@sshpass -p "$(PASSWD)" ssh "$(TARGET)" 'shutdown now' > /dev/null 2>&1 || true 
+
+
 ## Sync and execute
 run: ready sync exec