Generate apex_available from c2a instead of a patch am: df5e894296 am: 8c1a78df60 am: 043907a4a5

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/percent-encoding/+/1689910

Change-Id: I8ca0ccf19c471a6b5aeef3e50b6292dd4b5f02b5