Track our own fork(s) for 2023-10 ASB patching

* external/libxml2

Change-Id: I9d82f9ff741838c4f9399235a354e6467c904bb9

default.xml

@@ -263,7 +263,7 @@
   <project path="external/libvpx" name="LineageOS/android_external_libvpx" groups="pdk" />
   <project path="external/libxaac" name="platform/external/libxaac" groups="pdk" remote="aosp" />
   <project path="external/libxkbcommon" name="platform/external/libxkbcommon" groups="pdk" remote="aosp" />
-  <project path="external/libxml2" name="platform/external/libxml2" groups="pdk,libxml2" remote="aosp" />
+  <project path="external/libxml2" name="LineageOS/android_external_libxml2" groups="pdk,libxml2" />
   <project path="external/libyuv" name="platform/external/libyuv" groups="pdk,libyuv" remote="aosp" />
   <project path="external/linux-kselftest" name="platform/external/linux-kselftest" groups="vts,pdk" clone-depth="1" remote="aosp" />
   <project path="external/llvm" name="platform/external/llvm" groups="pdk" remote="aosp" />