incallui: always strip alpha from primary color

Change-Id: I1b46ee08af5c1945f1f7acb7469a974df20e8137
diff --git a/java/com/android/incallui/InCallActivity.java b/java/com/android/incallui/InCallActivity.java
index 3ff1d26..484a550 100644
--- a/java/com/android/incallui/InCallActivity.java
+++ b/java/com/android/incallui/InCallActivity.java
@@ -887,6 +887,10 @@
             ? ResourcesCompat.getColor(
                 getResources(), R.color.statusbar_background_color, getTheme())
             : InCallPresenter.getInstance().getThemeColorManager().getSecondaryColor();
+
+    // strip alpha :)
+    color =  (color & 0x00FFFFFF) | 0xFF000000;
+
     setTaskDescription(
         new TaskDescription(
             getResources().getString(R.string.notification_ongoing_call), null /* icon */, color));