ARM: dts: at91: sama5d2_icp: don't keep vdd_other enabled all the time

VDD_OTHER is not connected to any on board consumer thus it is not
needed to keep it enabled all the time.

Fixes: 68a95ef7

 ("ARM: dts: at91: sama5d2-icp: add SAMA5D2-ICP")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220826083927.3107272-9-claudiu.beznea@microchip.com