arm64: dts: librem5: undo regulator suspend optimizations

Allowing some of the regulators to turn of in suspend breaks the power
button so undo the changes

Fixes https://source.puri.sm/Librem5/linux-next/issues/109

Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>
2 jobs for power-button-fix in 50 minutes and 34 seconds (queued for 2 seconds)
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