Fix warning in vl.c

vl.c calls dma_helper_init, so it needs to include dma.h to get a
definition for it, otherwise we get compiler warnings like:

/home/hch/work/qemu/vl.c: In function 'main':
/home/hch/work/qemu/vl.c:5518: warning: implicit declaration of function 'dma_helper_init'


Signed-off-by: Christoph Hellwig <hch@lst.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6887 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/vl.c b/vl.c
index 1c22d4c..3828bfd 100644
--- a/vl.c
+++ b/vl.c
@@ -148,6 +148,7 @@
 #include "qemu-char.h"
 #include "cache-utils.h"
 #include "block.h"
+#include "dma.h"
 #include "audio/audio.h"
 #include "migration.h"
 #include "kvm.h"