arm: dts: nallino: Prevent disablement of VDD_3P3 regulator
The VDD_3P3 should not be disabled, even not logically. Thus prevent this by fixing the typo regulator_always_on to regulator-always-on.
The VDD_3P3 should not be disabled, even not logically. Thus prevent this by fixing the typo regulator_always_on to regulator-always-on.