Track our own fork for CVE-2023-5217

* external/libvpx

Change-Id: I969e1611de54606295c6199bfffe9d680122e24e

default.xml

@@ -260,7 +260,7 @@
   <project path="external/libunwind_llvm" name="platform/external/libunwind_llvm" groups="pdk" remote="aosp" />
   <project path="external/libusb" name="platform/external/libusb" groups="pdk" remote="aosp" />
   <project path="external/libutf" name="platform/external/libutf" groups="pdk" remote="aosp" />
-  <project path="external/libvpx" name="platform/external/libvpx" groups="pdk" remote="aosp" />
+  <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" />