tseries: Set CONFIG_ENV_IS_NOWHERE for SPL+NAND

In the case of SPL on these boards we only need environment for
SPL_USBETH, so it's safe to normally use ENV_IS_NOWHERE and SPL+NAND
does not support environment today.

Cc: Hannes Petermaier <oe5hpm@oevsv.at>
Signed-off-by: Tom Rini <trini@ti.com>
1 file changed