Generate apex_available from c2a instead of a patch am: 47e66dd500 am: 48e56b3a33 am: 66b742eb12

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/intrusive-collections/+/1688979

Change-Id: I134fe35ea163fafbd55059330ba99ea89efbfc0d