[nrf fromlist] tests: arch: arm: irq_vector_table: disable POWER_DOMAIN for nRF54H20

The nRF54H20s power domains use NRFS, which uses the irq vectors used
for this test suite. Disable power domains to not conflict with the
test suite.

Upstream PR #: 97452

Signed-off-by: Bjarki Arge Andreasen <[email protected]>

Author: bjarki-andreasen

tests/arch/arm/arm_irq_vector_table/boards/nrf54h20dk_nrf54h20_cpuapp.conf

@@ -0,0 +1,4 @@
+# Copyright (c) 2025 Nordic Semiconductor
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_POWER_DOMAIN=n

tests/arch/arm/arm_irq_vector_table/boards/nrf54h20dk_nrf54h20_cpurad.conf

@@ -0,0 +1,4 @@
+# Copyright (c) 2025 Nordic Semiconductor
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_POWER_DOMAIN=n