ARM: dts: at91: sama5d27_wlsom1: don't keep ldo2 enabled all the time

ldo2 is not used by any consumer on sama5d27_wlsom1 board, thus
don't keep it enabled all the time.

Fixes: 5d4c3cfb

 ("ARM: dts: at91: sama5d27_wlsom1: add SAMA5D27 wlsom1 and wlsom1-ek")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220826083927.3107272-8-claudiu.beznea@microchip.com