Add Guava to Camera2 build

Change-Id: I7a1f49df884a7660fbbd45322f135a0fb15dd78d
diff --git a/Android.mk b/Android.mk
index 8a50335..a2d3519 100644
--- a/Android.mk
+++ b/Android.mk
@@ -8,6 +8,7 @@
 LOCAL_STATIC_JAVA_LIBRARIES += android-ex-camera2-portability
 LOCAL_STATIC_JAVA_LIBRARIES += xmp_toolkit
 LOCAL_STATIC_JAVA_LIBRARIES += glide
+LOCAL_STATIC_JAVA_LIBRARIES += guava
 
 LOCAL_SRC_FILES := $(call all-java-files-under, src)
 LOCAL_SRC_FILES += $(call all-java-files-under, src_pd)