ARM: dts: at91: sama5d2_icp: specify proper regulator output ranges

Min and max output ranges of regulators need to satisfy board
requirements not PMIC requirements. Thus adjust device tree to
cope with this.

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/20220826083927.3107272-6-claudiu.beznea@microchip.com