Merge "Export more config values to Soong" am: f78f0ce5

$(call add_json_bool, Platform_sdk_final,                $(filter REL,$(PLATFORM_VERSION_CODENAME)))

$(call add_json_csv,  Platform_version_active_codenames, $(PLATFORM_VERSION_ALL_CODENAMES))

$(call add_json_csv,  Platform_version_future_codenames, $(PLATFORM_VERSION_FUTURE_CODENAMES))

$(call add_json_str,  Platform_security_patch,           $(PLATFORM_SECURITY_PATCH))

$(call add_json_str,  Platform_preview_sdk_version,      $(PLATFORM_PREVIEW_SDK_VERSION))

$(call add_json_str,  Platform_base_os,                  $(PLATFORM_BASE_OS))

$(call add_json_str,  Platform_min_supported_target_sdk_version, $(PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION))

$(call add_json_bool, Allow_missing_dependencies,        $(ALLOW_MISSING_DEPENDENCIES))

$(call add_json_bool, Unbundled_build,                   $(TARGET_BUILD_APPS))