x86/asm/entry: Move arch/x86/include/asm/calling.h to arch/x86/entry/

asm/calling.h is private to the entry code, make this more apparent
by moving it to the new arch/x86/entry/ directory.

Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

arch/x86/entry/entry_64.S

@@ -28,7 +28,7 @@
 #include <asm/segment.h>
 #include <asm/cache.h>
 #include <asm/errno.h>
-#include <asm/calling.h>
+#include "calling.h"
 #include <asm/asm-offsets.h>
 #include <asm/msr.h>
 #include <asm/unistd.h>

arch/x86/entry/ia32entry.S

@@ -4,7 +4,7 @@
  * Copyright 2000-2002 Andi Kleen, SuSE Labs.
  */		 
 
-#include <asm/calling.h>
+#include "calling.h"
 #include <asm/asm-offsets.h>
 #include <asm/current.h>
 #include <asm/errno.h>

arch/x86/entry/thunk_64.S

@@ -6,7 +6,7 @@
  * Subject to the GNU public license, v.2. No warranty of any kind.
  */
 #include <linux/linkage.h>
-#include <asm/calling.h>
+#include "calling.h"
 #include <asm/asm.h>
 
 	/* rdi:	arg1 ... normal C conventions. rax is saved/restored. */