v2023pre: Fix Variscite board support

Task https://phabricator.apertis.org/T9221

The iMX8MN Variscite Board is not being able to boot from eMMC due to a
regression introduced on v2022.04. This is fixed by the following
upstream commit, so pick it:

  commit 2349ecffec5fc91d3c8964725865132c73d68f15
  Author: Marek Vasut <marex@denx.de>
  Date:   Fri Jul 15 01:58:24 2022 +0200

      mmc: Do not send status of send_status is false

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>