Bump BlueZ to v5.79 (home-assistant#3903)

Cherry-pick bumps up to v5.79 and sync other changes and fixes with latest
upstream state.

* buildroot b4df362187...7d5c3b5e70 (10):
  > package/bluez5_utils: tidy up the init script
  > package/bluez5_utils: install datafiles with correct permissions
  > package/bluez5_utils: fix dbusconfdir
  > package/bluez5_utils{, -headers}: bump version to 5.79
  > package/bluez5_utils: enable asha/bass when building audio plugins
  > package/{bluez5_utils, bluez5_utils-headers}: bump to version 5.78
  > bluez5_utils: disable asha profile
  > package/{bluez5_utils, bluez5_utils-headers}: bump to version 5.77
  > package/bluez5_utils: disable datafiles
  > package/bluez5_utils: fix sixaxis build without tools