soc: nordic: nrf54h: make soc.h available to non-ARM CPUs

This file contains generic macros needed on non-ARM Nordic CPUs.

Signed-off-by: Nikodem Kastelik <nikodem.kastelik@nordicsemi.no>
diff --git a/soc/nordic/nrf54h/CMakeLists.txt b/soc/nordic/nrf54h/CMakeLists.txt
index 77290a3..1aa4723 100644
--- a/soc/nordic/nrf54h/CMakeLists.txt
+++ b/soc/nordic/nrf54h/CMakeLists.txt
@@ -2,10 +2,11 @@
 # SPDX-License-Identifier: Apache-2.0
 
 if(CONFIG_ARM)
-  zephyr_include_directories(.)
   zephyr_library_sources(soc.c)
 endif()
 
+zephyr_include_directories(.)
+
 # Ensure that image size aligns with 16 bytes so that MRAMC finalizes all writes
 # for the image correctly
 zephyr_linker_sources(SECTIONS SORT_KEY zzz_place_align_at_end align.ld)