Fix font for actionbar in device default

The font family was not being set on the action bar causing
it to revert to roboto. This simply overrides that to match the
light theme version (since they should use the same font).

Test: Manually observing title text in Settings > Accessibility >
      Text-to-speech output > cog icon
Bug: 129995075

Change-Id: Ic5415e3441a978e7af500549bfcca8083b704b39
diff --git a/core/res/res/values/styles_device_defaults.xml b/core/res/res/values/styles_device_defaults.xml
index d253f00..b716ab9 100644
--- a/core/res/res/values/styles_device_defaults.xml
+++ b/core/res/res/values/styles_device_defaults.xml
@@ -99,6 +99,7 @@
     <style name="Widget.DeviceDefault.ActionBar.TabText" parent="Widget.Material.ActionBar.TabText"/>
     <style name="Widget.DeviceDefault.ActionBar.TabBar" parent="Widget.Material.ActionBar.TabBar"/>
     <style name="Widget.DeviceDefault.ActionBar.Solid" parent="Widget.Material.ActionBar.Solid">
+        <item name="titleTextStyle">@style/TextAppearance.DeviceDefault.Widget.ActionBar.Title</item>
         <item name="background">?attr/colorPrimaryDark</item>
         <item name="backgroundStacked">?attr/colorPrimaryDark</item>
         <item name="backgroundSplit">?attr/colorPrimaryDark</item>