Fix clipping issue in StackView.

Change-Id: I7ec28f25c3993a2bd7ef6399ba1923839d239905
diff --git a/libs/hwui/Matrix.cpp b/libs/hwui/Matrix.cpp
index 5502e66..1a0fcf4 100644
--- a/libs/hwui/Matrix.cpp
+++ b/libs/hwui/Matrix.cpp
@@ -87,7 +87,7 @@
 
     data[kScaleZ] = 1.0f;
 
-    mSimpleMatrix = (v.getType() <= SkMatrix::kScale_Mask);
+    mSimpleMatrix = (v.getType() <= (SkMatrix::kScale_Mask | SkMatrix::kTranslate_Mask));
 }
 
 void Matrix4::copyTo(SkMatrix& v) const {