testsuite: add test for modinfo

These ext4 modules were sent by Jon Master so we can test the result of
modinfo with modules generated for different architectures.

They are now added to testsuite and their output tested automatically.
diff --git a/Makefile.am b/Makefile.am
index 74d1b8c..a6f6bcc 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -170,7 +170,8 @@
 					 testsuite/rootfs
 testsuite_libtestsuite_la_CPPFLAGS = $(TESTSUITE_CPPFLAGS)
 
-TESTSUITE = testsuite/test-init testsuite/test-testsuite testsuite/test-loaded
+TESTSUITE = testsuite/test-init testsuite/test-testsuite testsuite/test-loaded \
+	    testsuite/test-modinfo
 check_PROGRAMS = $(TESTSUITE)
 TESTS = $(TESTSUITE)
 
@@ -180,6 +181,8 @@
 testsuite_test_testsuite_CPPFLAGS = $(TESTSUITE_CPPFLAGS)
 testsuite_test_loaded_LDADD = testsuite/libtestsuite.la libkmod/libkmod-private.la
 testsuite_test_loaded_CPPFLAGS = $(TESTSUITE_CPPFLAGS)
+testsuite_test_modinfo_LDADD = testsuite/libtestsuite.la
+testsuite_test_modinfo_CPPFLAGS = $(TESTSUITE_CPPFLAGS)
 
 
 DISTCHECK_CONFIGURE_FLAGS=--enable-gtk-doc