Revert "arm/dts: hammerhead: disable ulps"

This reverts commit b5dde3f855c569ba49a68dcaa3c6d8251e883002.

Signed-off-by: Dan Trifan <jimsth@gmail.com>
Revert "Revert "arm/dt: hammerhead: Enable ULPS mode""

This reverts commit f6d0225fcd6bcbea1aec79264b898e7354f9ca77.

Signed-off-by: Dan Trifan <jimsth@gmail.com>
arm/dt: hammerhead: Enable partial frame update

This is the default setting for smart panels.

Signed-off-by: Dan Trifan <jimsth@gmail.com>