gconf: silence some spurious errors

gconf: silence some spurious errors

The postinstalls were producing errors like this:

  (gconftool-2.real:10095): GConf-WARNING **: Client failed to connect to the D-BUS daemon:
  Using X11 for dbus-daemon autolaunch was disabled at compile time, set your DBUS_SESSION_BUS_ADDRESS instead

These are harmless but distracting, so take a patch from upstream to silence
them.

(From OE-Core rev: bc0a4f6e4d01d5912c2589efa9b69d7eda462f73)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>