GI: Include the right sources when building introspection

We forgot to include the sources. Also, we rename the valgrind header
to -private to avoid gtk-doc blowing its mind trying to parse it.

Closes: #1729
Approved by: alexlarsson

common/Makefile.am.inc

@@ -112,7 +112,7 @@ libflatpak_common_la_SOURCES = \
 	common/flatpak-remote.c \
 	common/flatpak-error.c \
 	common/flatpak-installation.c \
-	common/valgrind.h \
+	common/valgrind-private.h \
 	$(NULL)
 
 libflatpak_common_la_CFLAGS = \
@@ -183,6 +183,8 @@ test_libflatpak_LDADD = \
 # gobject-introspection rules
 -include $(INTROSPECTION_MAKEFILE)
 
+sources = $(libflatpak_common_la_SOURCES) $(libflatpak_la_SOURCES)
+
 INTROSPECTION_GIRS =
 
 if HAVE_INTROSPECTION

common/flatpak-utils.c

@@ -25,7 +25,7 @@
 #include "flatpak-dir-private.h"
 #include "flatpak-oci-registry-private.h"
 #include "flatpak-run-private.h"
-#include "valgrind.h"
+#include "valgrind-private.h"
 
 #include <glib/gi18n.h>