Make more xmlError structs constant am: 0e68632986 am: d46da79d52 am: c3bec7d462

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

Change-Id: I7a0969dc0e146f1c894826d3070f4b3f44fa61f5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>