Update Plugin.FirebasePushNotification.csproj

Author: rdelrosario

src/Plugin.FirebasePushNotification/Plugin.FirebasePushNotification.csproj

@@ -70,6 +70,7 @@
   <ItemGroup Condition=" $(TargetFramework.StartsWith('MonoAndroid')) ">
      <Compile Include="**\*.android.cs" />
      <Compile Include="**\*.android.*.cs" />
+    <PackageReference Include="Xamarin.Firebase.Common" Version="71.1610.0" />
     <PackageReference Include="Xamarin.Firebase.Messaging" Version="71.1740.0" />
     <PackageReference Include="Xamarin.Android.Support.v4" Version="28.0.0.1" />
   </ItemGroup>