Merge "Truely re-export export_header_libs from ndk_library" into main am: 729c770b

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/3249712



Change-Id: I1bd6c42f847ea440e3d3d2eed80d21fc122b2ba5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>