Disable touch sounds by default

Bug: 159923217
Test: Check that `adb shell settings get system sound_effects_enabled`
returns 0

Change-Id: Ib094acf9342d8d99980a627133e9c34d2323c61d
Merged-In: Ib094acf9342d8d99980a627133e9c34d2323c61d
diff --git a/car_product/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml b/car_product/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
index 81a9a3d..5b53dcf 100644
--- a/car_product/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
+++ b/car_product/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
@@ -26,4 +26,7 @@
 
     <!-- Disable system heads-up notifications -->
     <integer name="def_heads_up_enabled">0</integer>
+
+    <!-- Default for UI touch sounds disabled -->
+    <bool name="def_sound_effects_enabled">false</bool>
 </resources>