Refactor haptic constant.

Use the constant from IExternalVibratorService.

Bug: 124318236
Test: play audio-haptic coupled file
Change-Id: Ice2ac13d0f6a6a749bb6243230524336144fa5f4
diff --git a/media/libaudioprocessing/tests/Android.bp b/media/libaudioprocessing/tests/Android.bp
index 811c16b..0c8e5bb 100644
--- a/media/libaudioprocessing/tests/Android.bp
+++ b/media/libaudioprocessing/tests/Android.bp
@@ -10,6 +10,7 @@
         "libcutils",
         "liblog",
         "libutils",
+        "libvibrator",
     ],
 
     cflags: [