The Kernel Image and DTB files are supposed to be picked from the rootfs
of the SD Card, this fails in legacy boot flow because bootpart is set
to 1:1. Fix it.
Fixes: a200f428b5 ("board: ti: am62x: Add am62x_beagleplay_* defconfigs and env file")
Reviewed-by: Nishanth Menon <nm@ti.com>
Acked-by: Chirag Shilwant <c-shilwant@ti.com>
Signed-off-by: Dhruva Gole <d-gole@ti.com>