board: ti: am62x: Add am62x_beagleplay_* defconfigs and env file

Add defconfig fragments for am625 based beagleplay and corresponding
customized environment file for beagleplay.

Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
3 files changed