Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: 699150cfbe am: aaffa4289e am: c163e91d61

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/proc-macro2/+/1912681

Change-Id: Ief6ba7fb370a679491bf80f368957fc75c8809fd