bmc: implement search for json files

Tested: Verified it prints out the blobs expected.
Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I1ba6af8b2ca066e6eb1699cb4214ce32f148005d
diff --git a/bmc/Makefile.am b/bmc/Makefile.am
index ef1a455..797de8d 100644
--- a/bmc/Makefile.am
+++ b/bmc/Makefile.am
@@ -37,6 +37,7 @@
 noinst_LTLIBRARIES = libfirmwareblob_common.la
 libfirmwareblob_common_la_SOURCES = \
 	buildjson.cpp \
+	fs.cpp \
 	firmware_handler.cpp \
 	file_handler.cpp \
 	prepare_systemd.cpp \