boards: mimxrt10xx: Disabled 1.8V support on mimxrt10xx platforms

The mimxrt10xx evaluation boards that support the NXP USDHC IP
communicate unreliably with SD cards at 1.8V using the USDHC driver.
This commit temporarily disables 1.8V communication for all rt10xx
boards that currently support the USDHC driver.

Fixes #32289

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>