x86/fpu: Move xsave.h to fpu/xsave.h

Move the xsave.h header file to the FPU directory as well.

Reviewed-by: Borislav Petkov <bp@alien8.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
index d68b349..20690a1 100644
--- a/arch/x86/include/asm/fpu-internal.h
+++ b/arch/x86/include/asm/fpu-internal.h
@@ -16,7 +16,7 @@
 
 #include <asm/user.h>
 #include <asm/fpu/api.h>
-#include <asm/xsave.h>
+#include <asm/fpu/xsave.h>
 
 #ifdef CONFIG_X86_64
 # include <asm/sigcontext32.h>