tests: drivers: spi: update add pm-runtime-auto to nrf-spis

The nrf-spis instances require zephyr,pm-device-runtime-auto;
to be properly initialized.

Signed-off-by: Bjarki Arge Andreasen <bjarki.andreasen@nordicsemi.no>

Author: bjarki-andreasen

tests/drivers/spi/spi_controller_peripheral/boards/nrf52840dk_nrf52840.overlay

@@ -65,4 +65,5 @@ dut_spis: &spi1 {
 	pinctrl-0 = <&spi1_default_alt>;
 	pinctrl-1 = <&spi1_sleep_alt>;
 	pinctrl-names = "default", "sleep";
+	zephyr,pm-device-runtime-auto;
 };

tests/drivers/spi/spi_controller_peripheral/boards/nrf54h20dk_nrf54h20_common.dtsi

@@ -77,4 +77,5 @@ dut_spis: &spi131 {
 	pinctrl-names = "default", "sleep";
 	/delete-property/rx-delay-supported;
 	/delete-property/rx-delay;
+	zephyr,pm-device-runtime-auto;
 };

tests/drivers/spi/spi_controller_peripheral/boards/nrf54h20dk_nrf54h20_cpuapp_fast.overlay

@@ -77,4 +77,5 @@ dut_spis: &spi131 {
 	memory-regions = <&cpuapp_dma_region>;
 	/delete-property/rx-delay-supported;
 	/delete-property/rx-delay;
+	zephyr,pm-device-runtime-auto;
 };

tests/drivers/spi/spi_controller_peripheral/boards/nrf54l15dk_nrf54l15_cpuapp.overlay

@@ -71,4 +71,5 @@ dut_spis: &spi21 {
 	pinctrl-names = "default", "sleep";
 	/delete-property/rx-delay-supported;
 	/delete-property/rx-delay;
+	zephyr,pm-device-runtime-auto;
 };