[automerger skipped] Merge "Avoid using thread cache in unwinder." into sc-dev...

[automerger skipped] Merge "Avoid using thread cache in unwinder." into sc-dev am: a705c040 -s ours

am skip reason: Merged-In I47b13d02674aadbacd8dac36d8382eed0885413c with SHA-1 cbf7c466 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/15098025

Change-Id: Ib375b741d135391f10785195b17e2d2bcd0d7574