FAILED: out/target/product/hikey970/obj/ETC/sepolicy_neverallows_intermediates/sepolicy_neverallows
/bin/bash -c "(rm -f out/target/product/hikey970/obj/ETC/sepolicy_neverallows_intermediates/sepolicy_neverallows ) && (ASAN_OPTIONS=detect_leaks=0 out/host/linux-x86/bin/checkpolicy -M -c 30 -o out/target/product/hikey970/obj/ETC/sepolicy_neverallows_intermediates/sepolicy_neverallows out/target/product/hikey970/obj/ETC/sepolicy_neverallows_intermediates/policy.conf )"
device/linaro/hikey/sepolicy/hostapd.te:4:ERROR 'unknown type hostapd' at token ';' on line 41751:

hostapd no longer directly accesses /data outside /data/vendor.

typeattribute hostapd data_between_core_and_vendor_violators;
checkpolicy: error(s) encountered while parsing configuration
out/host/linux-x86/bin/checkpolicy: loading policy configuration from out/target/product/hikey970/obj/ETC/sepolicy_neverallows_intermediates/policy.conf

Error:
[ 19% 113/590] including device/linaro/hikey/Android.mk ...
FAILED:
device/linaro/hikey/wpan/uim/Android.mk: error: uim: LOCAL_MODULE_TAGS := eng is obsolete. See https://android.googlesource.com/platform/build/+/master/Changes.md#LOCAL_MODULE_TAGS
build/make/core/base_rules.mk:171: error: done.
20:07:50 ckati failed with: exit status 1

Idea:
should be LOCAL_MODULE_TAGS := optional in device/linaro/hikey/wpan/uim/Android.mk

solved by changing aosp\out\build-hikey970.ninja,
two places,
command = /bin/bash -c "build/make/tools/fs_config/fs_config_generator.py fsconfig --aid-header system/core/include/private/android_filesystem_config.h --capability-header bionic/libc/kernel/uapi/linux/capability.h --partition system --all-partitions '' --dirs --out_file out/target/product/hikey970/obj/ETC/fs_config_dirs_system_intermediates/fs_config_dirs_system /dev/null"

command = /bin/bash -c "build/make/tools/fs_config/fs_config_generator.py fsconfig --aid-header system/core/include/private/android_filesystem_config.h --capability-header bionic/libc/kernel/uapi/linux/capability.h --partition system --all-partitions '' --files --out_file out/target/product/hikey970/obj/ETC/fs_config_files_system_intermediates/fs_config_files_system /dev/null"

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