cupid: overlay: Update pixel pitch

Bug: 319894241
Flag: ACONFIG com.android.systemui.device_entry_udfps_refactor DEVELOPMENT
Test: manual

Change-Id: Iaa9576cb95ebe73043b7030b2b176f67bc90e3a1

overlay/SystemUI/res/values/dimens.xml

@@ -16,4 +16,8 @@
      For devices with sensors on the back of the device, this corresponds to the location on the
      screen directly in front of the sensor. -->
     <dimen name="physical_fingerprint_sensor_center_screen_location_y">2163px</dimen>
+
+    <!-- Microns/ums (1000 um = 1mm) per pixel for the given device. If unspecified, UI that
+         relies on this value will not be sized correctly. -->
+    <item format="float" name="pixel_pitch" type="dimen">60.61</item>
 </resources>