[PATCH] imx: fix get_boot_device() for imx8

[Fabio Estevam]

Hi Tim,

On Mon, Apr 24, 2023 at 1:33 PM Tim Harvey <tharvey at gateworks.com> wrote:
>
> commit 787f04bb6a0a ("imx: add USB2_BOOT type") broke get_boot_device()
> for IMX8 which affects booting from SDP due to boot_instance being
> non-zero.
>
> Fix this by only using boot_instance for imx8ulp and imx9.
>
> Fixes: 787f04bb6a0a ("imx: add USB2_BOOT type")
> Signed-off-by: Tim Harvey <tharvey at gateworks.com>

Reviewed-by: Fabio Estevam <festevam at denx.de>