Add code for generating fifo command packing.

Change-Id: I2d2ef095344b200b10457de96ae1d85821edc91e
diff --git a/Android.mk b/Android.mk
index c336c0d..ef00b30 100644
--- a/Android.mk
+++ b/Android.mk
@@ -91,6 +91,7 @@
 	rsDevice.cpp \
 	rsElement.cpp \
 	rsFBOCache.cpp \
+	rsFifoSocket.cpp \
 	rsFileA3D.cpp \
 	rsFont.cpp \
 	rsLocklessFifo.cpp \