snippets: halium: sync manifest to vendor/halium/manifest

This allows for easier modification of the manifest.

Change-Id: I0c31884ace61561578c8dfbbb37c74db68c54358
Signed-off-by: Alexander Martinz <[email protected]>

Author: amartinz

snippets/halium.xml

@@ -8,6 +8,7 @@
   </project>
   <project path="vendor/halium/droidmedia" name="Halium/droidmedia" revision="halium-10.0" />
   <project path="vendor/halium/libhybris" name="Halium/libhybris" revision="halium-10.0" />
+  <project path="vendor/halium/manifest" name="Halium/android" revision="halium-10.0" />
   <project path="vendor/halium/platform-api" name="ubports/platform-api" revision="xenial_-_android9" />
   <project path="vendor/halium/stub_netd" name="Halium/stub_netd" revision="halium-9.0" />
 </manifest>