tools: split out the update handler

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I367ea961c98ec822d3200d101c4f5977d77e7402
diff --git a/tools/Makefile.am b/tools/Makefile.am
index c85ffeb..4fefe6e 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -10,6 +10,8 @@
 libupdater_la_SOURCES = \
 	$(top_srcdir)/util.cpp \
 	updater.cpp \
+	handler.cpp \
+	helper.cpp \
 	bt.cpp \
 	lpc.cpp \
 	io.cpp \