omni-default: use android_vendor_omni

replication is fixed

Change-Id: I1a993e0d17569f5b900741cfe323fda7d6bf4eed

omni-default.xml

@@ -33,6 +33,6 @@
   <project path="packages/apps/OmniTheme" name="android_packages_apps_OmniTheme" remote="omnirom" revision="android-7.1" />
   <project path="packages/apps/OpenDelta" name="android_packages_apps_OpenDelta" remote="omnirom" revision="android-7.1" />
   <project path="packages/apps/Phonograph" name="android_packages_apps_Phonograph" remote="omnirom" revision="android-7.1" />
-  <project path="vendor/omni" name="android_vendor_omni2" remote="omnirom" revision="android-7.1" />
+  <project path="vendor/omni" name="android_vendor_omni" remote="omnirom" revision="android-7.1" />
 
 </manifest>