Update settings PrimarySwitchPreference reference

To make InputMethodPreference support 2 target
reference, CL[1] move the PrimarySwitchPreference
into SettingsLib.

Change all PrimarySwitchPreference reference to
Settingslib one and remove the original one.

[1]: Idea3935d95b8d22b00ca89313e9eb3e979e4aa74

Bug: 197705032
Test: Presubmit
Change-Id: I95d111522344bb7cbdd380382e48fe60a5ebc9a2
diff --git a/res/xml/gestures.xml b/res/xml/gestures.xml
index f4e21fa..4881360 100644
--- a/res/xml/gestures.xml
+++ b/res/xml/gestures.xml
@@ -87,7 +87,7 @@
         android:fragment="com.android.settings.gestures.PowerMenuSettings"
         settings:controller="com.android.settings.gestures.PowerMenuPreferenceController" />
 
-    <com.android.settings.widget.PrimarySwitchPreference
+    <com.android.settingslib.PrimarySwitchPreference
         android:key="gesture_prevent_ringing_summary"
         android:title="@string/gesture_prevent_ringing_screen_title"
         android:fragment="com.android.settings.gestures.PreventRingingGestureSettings"