Fix shadow radius too large for RS

bug:28276925

Change-Id: I3d962ace75be7bbf49f5a95320390d8f5a9bf951
diff --git a/libs/hwui/Android.mk b/libs/hwui/Android.mk
index 6259466..8857c41 100644
--- a/libs/hwui/Android.mk
+++ b/libs/hwui/Android.mk
@@ -247,6 +247,7 @@
     tests/unit/DamageAccumulatorTests.cpp \
     tests/unit/DeviceInfoTests.cpp \
     tests/unit/FatVectorTests.cpp \
+    tests/unit/FontRendererTests.cpp \
     tests/unit/GlopBuilderTests.cpp \
     tests/unit/GpuMemoryTrackerTests.cpp \
     tests/unit/GradientCacheTests.cpp \