Kconfig.zephyr: add an option for checking build time init priority

Add an option for running the build time initialization priority check
as part of the build.

By default the build is going to fail if any error is reported
(dependent devices, inverted priority), optionally it can also be failed
on warnings (dependent devices, same priority).

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>

CMakeLists.txt

@@ -1759,6 +1759,19 @@ if(CONFIG_BUILD_OUTPUT_INFO_HEADER)
     )
 endif()
 
+if(CONFIG_CHECK_INIT_PRIORITIES)
+  if(CONFIG_CHECK_INIT_PRIORITIES_FAIL_ON_WARNING)
+    set(fail_on_warning "--fail-on-warning")
+  endif()
+  list(APPEND
+    post_build_commands
+    COMMAND ${PYTHON_EXECUTABLE} ${ZEPHYR_BASE}/scripts/build/check_init_priorities.py
+      --build-dir ${PROJECT_BINARY_DIR}/..
+      --edt-pickle ${EDT_PICKLE}
+      ${fail_on_warning}
+    )
+endif()
+
 # Generate and use MCUboot related artifacts as needed.
 if(CONFIG_BOOTLOADER_MCUBOOT)
   get_target_property(signing_script zephyr_property_target SIGNING_SCRIPT)