cmake/zephyr: unify cmake rules for src/audio/mic_privacy

Adding all source files in a single, giant zephyr/CMakeLists.txt is
inconvenient and does not scale.

Modify Zephyr rules to use definitions in src/audio/mic_privacy
instead.

Link: #8260
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>

Author: kv2019i

src/audio/CMakeLists.txt

@@ -105,6 +105,9 @@ if(NOT CONFIG_COMP_MODULE_SHARED_LIBRARY_BUILD)
 		add_subdirectory(codec)
 	endif()
 	add_subdirectory(google)
+	if(CONFIG_INTEL_ADSP_MIC_PRIVACY)
+		add_subdirectory(mic_privacy_manager)
+	endif()
 	if(CONFIG_ZEPHYR_NATIVE_DRIVERS)
 		list(APPEND base_files host-zephyr.c)
 		sof_list_append_ifdef(CONFIG_COMP_DAI base_files dai-zephyr.c)
@@ -143,9 +146,6 @@ if(NOT CONFIG_COMP_MODULE_SHARED_LIBRARY_BUILD)
 			dai-legacy.c
 		)
 	endif()
-	if(CONFIG_INTEL_ADSP_MIC_PRIVACY)
-		add_subdirectory(mic_privacy_manager)
-	endif()
 
 	return()
 endif()

zephyr/CMakeLists.txt

@@ -134,7 +134,6 @@ cmake_path(SET sof_top_dir NORMALIZE "${CMAKE_CURRENT_SOURCE_DIR}/..")
 set(SOF_SRC_PATH "${sof_top_dir}/src")
 
 set(SOF_PLATFORM_PATH "${SOF_SRC_PATH}/platform")
-set(SOF_AUDIO_PATH "${SOF_SRC_PATH}/audio")
 set(SOF_SAMPLES_PATH "${SOF_SRC_PATH}/samples")
 set(SOF_LIB_PATH "${SOF_SRC_PATH}/lib")
 set(SOF_DRIVERS_PATH "${SOF_SRC_PATH}/drivers")
@@ -571,10 +570,6 @@ zephyr_library_sources_ifdef(CONFIG_SHELL
        sof_shell.c
 )
 
-zephyr_library_sources_ifdef(CONFIG_INTEL_ADSP_MIC_PRIVACY
-	${SOF_AUDIO_PATH}/mic_privacy_manager/mic_privacy_manager_intel.c
-)
-
 zephyr_library_link_libraries(SOF)
 target_link_libraries(SOF INTERFACE zephyr_interface)