Make more xmlError structs constant am: 0e68632986

Original change: https://android-review.googlesource.com/c/platform/external/parameter-framework/+/2828272

Change-Id: I422c648422eeb3805a65dcadba5d1122dacedbfb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>