sm7125: fingerprint: Use dim layer kernel defined value

Change-Id: I8f10fcb0edf992b6aab8581a28922bfb2eacafa0

fingerprint/Android.bp

@@ -4,4 +4,7 @@ cc_library_static {
     include_dirs: [
         "frameworks/native/services/surfaceflinger/CompositionEngine/include"
     ],
+    header_libs: [
+        "generated_kernel_headers",
+    ],
 }

fingerprint/UdfpsExtension.cpp

@@ -15,9 +15,13 @@
  */
 
 #include <compositionengine/UdfpsExtension.h>
+#include <drm/sde_drm.h>
 
 uint32_t getUdfpsZOrder(uint32_t z, bool touched) {
-    (void) touched;
+    if (touched) {
+        z |= FOD_PRESSED_LAYER_ZORDER;
+    }
+
     return z;
 }