minnowboard: Update weaved.conf to use the new local_access_enabled setting

libweave/weaved combined local_discovery_enabled and local_pairing_enabled into
local_access_enabled setting, so updating existing .conf file to include the
new spelling of this setting

Change-Id: Id6c9b18fc090d32adab9d8e6ed9b37c9ee454c04
1 file changed