TouchGestures: Add keyhandler overlays

Change-Id: Ibc3914370828e04c713ce1638bd4814fb893a3ee
Signed-off-by: Mohammad Hasan Keramat J <ikeramat@protonmail.com>

core/res/res/values/lmodroid_config.xml

@@ -18,10 +18,12 @@
 
     <!-- Paths to the libraries that contain device specific key handlers -->
     <string-array name="config_deviceKeyHandlerLibs" translatable="false">
+        <item>/system/system_ext/priv-app/TouchGestures/TouchGestures.apk</item>
     </string-array>
 
     <!-- Names of the key handler classes -->
     <string-array name="config_deviceKeyHandlerClasses" translatable="false">
+        <item>com.android.touch.gestures.KeyHandler</item>
     </string-array>
 
     <!-- The list of vendor package signatures that should also be considered