Fix PhaseBeam to build as API 17.

Bug: 16031597
Change-Id: I3d2a9cff45084f874125409f1bf2fa5756602f3b
diff --git a/Android.mk b/Android.mk
index f81c57c..c8a1d40 100644
--- a/Android.mk
+++ b/Android.mk
@@ -23,6 +23,7 @@
 
 LOCAL_PACKAGE_NAME := PhaseBeam
 LOCAL_CERTIFICATE := shared
+LOCAL_SDK_VERSION := 17
 
 LOCAL_PROGUARD_FLAG_FILES := proguard.cfg