Move disas.h to include/disas/

+ dis-asm.h -> include/disas/bfd.h

+ arm-dis.c -> disas/arm.c
  ppc-dis.c -> disas/ppc.c
  i386-dis.c -> disas/i386.c
  mips-dis.c -> disas/mips.c

+ remove all unused .ld scripts

Change-Id: Ie29662b83c09ea17d34e42dda3998691c182b10e
diff --git a/disas.c b/disas.c
index 4b1a9f0..93f11c6 100644
--- a/disas.c
+++ b/disas.c
@@ -1,12 +1,12 @@
 /* General "disassemble this chunk" code.  Used for debugging. */
 #include "config.h"
-#include "dis-asm.h"
+#include "disas/bfd.h"
 #include "elf.h"
 #include <errno.h>
 
 #include "cpu.h"
 #include "exec/exec-all.h"
-#include "disas.h"
+#include "disas/disas.h"
 
 /* Filled in by elfload.c.  Simplistic, but will do for now. */
 struct syminfo *syminfos = NULL;