Adjust with changes in libxml2 upgrade am: 415112fea8

Original change: https://android-review.googlesource.com/c/platform/frameworks/minikin/+/2773004

Change-Id: I386c23965966e8b1d487a74d54eb23772f0429ec
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>