change #include "interface.h" to <jtag/interface.h>

Changes from the flat namespace to heirarchical one.  Instead of writing:

	#include "interface.h"

the following form should be used.

	#include <jtag/interface.h>

The exception is from .c files in the same directory.

src/jtag/minidummy/minidummy.c

@@ -22,7 +22,7 @@
 
 #include "embeddedice.h"
 #include "minidriver.h"
-#include "interface.h"
+#include <jtag/interface.h>
 
 struct jtag_interface minidummy_interface =
 {