bus: fsl-mc: properly empty-initialize structure

bus: fsl-mc: properly empty-initialize structure

Use the proper form of the empty initializer when working with
structures that contain an array. Otherwise, older gcc versions (eg gcc
4.9) will complain about this.

Fixes: 1ac210d128ef ("bus: fsl-mc: add the fsl_mc_get_endpoint function")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Link: https://lore.kernel.org/r/20191204142950.30206-1-ioana.ciornei@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>