target files shouldn't #include <target/...h>

Make these ".h" files adopt the same policy the ".c" files already
follow:  don't use <subsystem/...h> syntax for private interfaces.

If we ever get reviewed/supported "public" interfaces they should
come exclusively from some include/... directory; that'll be the
time to switch to <...> syntax for any subsystem's own interfaces.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

src/target/xscale.h

@@ -23,9 +23,9 @@
 #ifndef XSCALE_H
 #define XSCALE_H
 
-#include <target/arm.h>
-#include <target/armv4_5_mmu.h>
-#include <target/trace.h>
+#include "arm.h"
+#include "armv4_5_mmu.h"
+#include "trace.h"
 
 #define	XSCALE_COMMON_MAGIC 0x58534341