board/freescale: use correct ahab-container.img file name

board/freescale: use correct ahab-container.img file name

Commit 3f8ace002831a01ed6aec59b704bd92c8a3b957f
("board/freescale/common/imx: add support for i.MX8") had its
conflicts incorrectly tweaked when applied to Buildroot. The
ahab-container.img is installed with this name (ahab-container.img) by
the imx-firmware package, and not mx8qm-ahab-container.img or
mx8qx-ahab-container.img.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Julien Olivain <juju@cotds.org>
Tested-by: Julien Olivain <juju@cotds.org>
Reported-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>