Fix incorrect embed.

osu.Game.Resources/osu.Game.Resources.csproj

@@ -402,7 +402,7 @@
   <ItemGroup>
     <EmbeddedResource Include="Textures\Play\Taiko\bash-inner-ring.png" />
     <EmbeddedResource Include="Textures\Play\Taiko\bash-outer-ring.png" />
-    <Content Include="Textures\Play\Taiko\spinner-inner-ring.png" />
+    <EmbeddedResource Include="Textures\Play\Taiko\spinner-inner-ring.png" />
     <EmbeddedResource Include="Textures\Play\Taiko\taiko-drum-inner.png" />
     <EmbeddedResource Include="Textures\Play\Taiko\taiko-drum-inner-hit.png" />
     <EmbeddedResource Include="Textures\Play\Taiko\taiko-drum-outer-hit.png" />