[nrf fromlist] soc: nordic: nrf54h: Change PM_DEVICE_RUNTIME default

nrf54h20 device requires device runtime PM to be enabled when
device PM is in use.

Upstream PR #: 87807

Signed-off-by: Krzysztof Chruściński <[email protected]>
(cherry picked from commit 336fc6c)

Author: nordic-krch

soc/nordic/nrf54h/Kconfig.defconfig

@@ -42,4 +42,7 @@ config SPI_DW_ACCESS_WORD_ONLY
 config PM_DEVICE_POWER_DOMAIN
 	default n if PM_DEVICE
 
+config PM_DEVICE_RUNTIME
+	default y if PM_DEVICE
+
 endif # SOC_SERIES_NRF54HX