fix failing rust_aconfig_library test am: 521eb20d am: 30a59149 am:...

fix failing rust_aconfig_library test am: 521eb20d am: 30a59149 am: 090e75b4 am: 06bf568d am: ff7db139

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2757201



Change-Id: Icdac00f65f93e79fd4d0f0afdade2f281a42ab24
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>