android: switch to android_vendor_omni2

Change-Id: I0a55f8a1dc79c5d907a58fdcb55c2df99ed20b5c

omni-default.xml

@@ -28,7 +28,6 @@
   <project path="packages/apps/OmniSwitch" name="android_packages_apps_OmniSwitch" 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/PerformanceControl" name="android_packages_apps_PerformanceControl" remote="omnirom" revision="android-7.1" />
-
-  <project path="vendor/omni" name="android_vendor_omni" remote="omnirom" revision="android-7.1" />
+  <project path="vendor/omni" name="android_vendor_omni2" remote="omnirom" revision="android-7.1" />
 
 </manifest>