esp8266/scripts/inisetup: Add commented-out call to esp.osdebug(None).

That apparently will only help folks who read the docs on how to disable,
but could use a quick reminder straight in boot.py. For the developers,
it's important to have debug logging enabled in development branch
(master).

esp8266/scripts/inisetup.py

@@ -40,6 +40,8 @@ def setup():
     with open("/boot.py", "w") as f:
         f.write("""\
 # This file is executed on every boot (including wake-boot from deepsleep)
+#import esp
+#esp.osdebug(None)
 import gc
 #import webrepl
 #webrepl.start()