Upgrade xz-embedded to 3f438e15109229bb14ab45f285f4bff5412a9542 am: 6e6257f536 am: b7e6cc6d06 am: 4e070e07ba am: e0f55df487

Original change: https://android-review.googlesource.com/c/platform/external/xz-embedded/+/1853701

Change-Id: I764132b22c8050c884319198e547e38293537abd