Generate apex_available from c2a instead of a patch am: df5e894296 am: 8c1a78df60 am: 043907a4a5 am: e8ff6eb7c0 am: e79bffb98a

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

Change-Id: I009247991eed18f51250e08f72f4b15106a64f90