mmal: Add mmal_picture.h to Makefile

The header needs to be referenced by the Makefile to be included in the dist
tarball.
Signed-off-by: Julian Scheel <julian@jusst.de>
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/hw/mmal/Makefile.am

@@ -4,7 +4,7 @@ mmaldir = $(pluginsdir)/mmal
 AM_CFLAGS += $(CFLAGS_mmal)
 AM_LDFLAGS += -rpath '$(mmaldir)' $(LDFLAGS_mmal)
 
-libmmal_vout_plugin_la_SOURCES = vout.c mmal_picture.c
+libmmal_vout_plugin_la_SOURCES = vout.c mmal_picture.c mmal_picture.h
 libmmal_vout_plugin_la_CFLAGS = $(AM_CFLAGS)
 libmmal_vout_plugin_la_LDFLAGS = $(AM_LDFLAGS) -lm
 libmmal_vout_plugin_la_LIBADD = $(LIBS_mmal)