boards: nxp: vmu_rt1170: Fix dts binding issues

Fixs USDHC by setting PWR and CD gpio's correctly.
Adds missing button from the GPS module.

Co-authored-by: Peter van der Perk <peter.vanderperk@nxp.com>
Signed-off-by: Benjamin Perseghetti <bperseghetti@rudislabs.com>