configs: phycore_am62x_a53_defconfig: Enable ENV_IS_IN_SPI_FLASH

Enable ENV_IS_IN_SPI_FLASH to read the environment from the SPI
flash when booting from it. The oftree, kernel and ramdisk sizes
are located in this environment and therefore required to boot
an initramfs.

Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Reviewed-by: Wadim Egorov <w.egorov@phytec.de>
1 file changed