change #include "trace.h" to <target/trace.h>

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

	#include "trace.h"

the following form should be used.

	#include <target/trace.h>

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

src/target/xscale.h

@@ -25,7 +25,7 @@
 
 #include <target/armv4_5.h>
 #include <target/armv4_5_mmu.h>
-#include "trace.h"
+#include <target/trace.h>
 
 #define	XSCALE_COMMON_MAGIC 0x58534341