omni: Remove Omni Chromium from webviewprovider overlay and add back SystemWebView

WebView is no longer inside org.chromium.chrome, so we can drop it

Change-Id: I227773e400fbc07b7c21be6a594fedf83d7c1377
diff --git a/config/packages.mk b/config/packages.mk
index 1a7b462..e55f1c5 100644
--- a/config/packages.mk
+++ b/config/packages.mk
@@ -28,10 +28,10 @@
     vim \
     vncflinger \
     vncpasswd \
-    OmniRemote
+    OmniRemote \
+    SystemWebView \
 
 #PRODUCT_PACKAGES += \
-    SystemWebView \
     ThemePicker \
     OmniOverlayStub \
     omni-overlays