Set lower hotspotY for handwriting icon

On device with density forced to 1.6, hotspotY and bitmap height are
equal, which triggers the following exception:

java.lang.IllegalArgumentException: y hotspot lies outside of the bitmap area

Test: Boot up with display density 1.6, notice that PointerIcon
      exception is gone.
Fixes: https://gitlab.com/LineageOS/issues/android/-/issues/7368
Change-Id: Ifca973fe30f25c0bc8102562a2c84641fea62f3e

core/res/res/drawable/pointer_handwriting_icon.xml

@@ -2,4 +2,4 @@
 <pointer-icon xmlns:android="http://schemas.android.com/apk/res/android"
     android:bitmap="@drawable/pointer_handwriting"
     android:hotSpotX="8.25dp"
-    android:hotSpotY="23.75dp" />
\ No newline at end of file
+    android:hotSpotY="23.50dp" />
\ No newline at end of file

core/res/res/drawable/pointer_handwriting_vector_icon.xml

@@ -2,4 +2,4 @@
 <pointer-icon xmlns:android="http://schemas.android.com/apk/res/android"
     android:bitmap="@drawable/pointer_handwriting_vector"
     android:hotSpotX="8.25dp"
-    android:hotSpotY="23.75dp" />
\ No newline at end of file
+    android:hotSpotY="23.50dp" />
\ No newline at end of file