PEL: Print Failing MTMS section into JSON

Remove any trailing whitespace for serial number.

"Failing MTMS": {
    "Section Version":          "1",
    "Sub-section type":         "0",
    "Created by":               "0x4552",
    "Machine Type Model":       "OPWR-131",
    "Serial Number":            "1318ABA"
},

Testing: Manually run peltool and verified output. All unit tests
passed.
Signed-off-by: Harisuddin Mohamed Isa <harisuddin@gmail.com>
Change-Id: I7a05790bdf406ef6d7946ffae831a45ee6dd5cda
diff --git a/test/openpower-pels/Makefile.include b/test/openpower-pels/Makefile.include
index 2bed701..a700a50 100644
--- a/test/openpower-pels/Makefile.include
+++ b/test/openpower-pels/Makefile.include
@@ -9,6 +9,7 @@
 	fru_identity_test \
 	generic_section_test \
 	host_notifier_test \
+	json_utils_test \
 	log_id_test \
 	mru_test \
 	mtms_test \
@@ -187,6 +188,7 @@
 failing_mtms_test_LDADD = \
 	$(test_ldadd) \
 	$(top_builddir)/extensions/openpower-pels/failing_mtms.o \
+	$(top_builddir)/extensions/openpower-pels/json_utils.o \
 	$(top_builddir)/extensions/openpower-pels/mtms.o
 failing_mtms_test_LDFLAGS = $(test_ldflags)
 
@@ -343,3 +345,11 @@
 	$(top_builddir)/extensions/openpower-pels/host_notifier.o \
 	$(top_builddir)/extensions/openpower-pels/repository.o
 host_notifier_test_LDFLAGS = $(test_ldflags) $(SDEVENTPLUS_LIBS)
+
+json_utils_test_SOURCES = %reldir%/json_utils_test.cpp
+json_utils_test_CPPFLAGS = $(test_cppflags)
+json_utils_test_CXXFLAGS = $(test_cxxflags)
+json_utils_test_LDADD = \
+	$(test_ldadd) \
+	$(top_builddir)/extensions/openpower-pels/json_utils.o
+json_utils_test_LDFLAGS = $(test_ldflags)