Merge "Fix faint ripple" into tm-dev am: 973fc119c5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17251543

Change-Id: If56aa614628b37e6bd818f523188df194c1af1d8

graphics/java/android/graphics/drawable/RippleDrawable.java

@@ -1000,7 +1000,7 @@ public class RippleDrawable extends LayerDrawable {
     }
 
     private int clampAlpha(@ColorInt int color) {
-        if (Color.alpha(color) > 128) {
+        if (Color.alpha(color) < 128) {
             return  (color & 0x00FFFFFF) | 0x80000000;
         }
         return color;