rust: Enable ELF TLS by default in platform Rust am: 15675d59 am: 7514a31d

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2855216



Change-Id: I31031ebee45c691e8b12b8be86b57e0918e2a309
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>