Merge "Use extra_cfg rather than add_module_block." into main am: de7434b405

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/ring/+/2841614

Change-Id: I8d653ec2b40c15bbe30db0c2d76ddfd5d901cbc0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>