Adjust with changes in libxml2 upgrade am: 415112fea8

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

Change-Id: I996f7c637c1aa24e93674745041b4fee53789397
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>