aml_hef_341613000 (11465779,com.google.android.healthfitness)
Add a placeholder target for librustc_demangle_static. am: 552e7417a7 am: ec2f2d4656 am: 4a53a39d1f

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/rustc-demangle-capi/+/2400819

Change-Id: I5a2750d730b979cb76fed7f1a9487ac414fcf93f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>