arm: update in-source documentation references

The Arm documentation has moved to Documentation/arch/arm; update
references within arch/arm to match.

Cc: Russell King <linux@armlinux.org.uk>
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: linux-doc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-arch@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Author: Jonathan Corbet

arch/arm/Kconfig

@@ -1780,7 +1780,7 @@ config VFP
 	  Say Y to include VFP support code in the kernel. This is needed
 	  if your hardware includes a VFP unit.
 
-	  Please see <file:Documentation/arm/vfp/release-notes.rst> for
+	  Please see <file:Documentation/arch/arm/vfp/release-notes.rst> for
 	  release notes and additional status information.
 
 	  Say N if your target does not have VFP hardware.

arch/arm/common/mcpm_entry.c

@@ -21,7 +21,7 @@
 /*
  * The public API for this code is documented in arch/arm/include/asm/mcpm.h.
  * For a comprehensive description of the main algorithm used here, please
- * see Documentation/arm/cluster-pm-race-avoidance.rst.
+ * see Documentation/arch/arm/cluster-pm-race-avoidance.rst.
  */
 
 struct sync_struct mcpm_sync;

arch/arm/common/mcpm_head.S

@@ -5,7 +5,7 @@
  * Created by:  Nicolas Pitre, March 2012
  * Copyright:   (C) 2012-2013  Linaro Limited
  *
- * Refer to Documentation/arm/cluster-pm-race-avoidance.rst
+ * Refer to Documentation/arch/arm/cluster-pm-race-avoidance.rst
  * for details of the synchronisation algorithms used here.
  */
 

arch/arm/common/vlock.S

@@ -6,7 +6,7 @@
  * Copyright:	(C) 2012-2013  Linaro Limited
  *
  * This algorithm is described in more detail in
- * Documentation/arm/vlocks.rst.
+ * Documentation/arch/arm/vlocks.rst.
  */
 
 #include <linux/linkage.h>

arch/arm/include/asm/setup.h

@@ -5,7 +5,7 @@
  *  Copyright (C) 1997-1999 Russell King
  *
  *  Structure passed to kernel to tell it about the
- *  hardware it's running on.  See Documentation/arm/setup.rst
+ *  hardware it's running on.  See Documentation/arch/arm/setup.rst
  *  for more info.
  */
 #ifndef __ASMARM_SETUP_H

arch/arm/include/uapi/asm/setup.h

@@ -9,7 +9,7 @@
  * published by the Free Software Foundation.
  *
  *  Structure passed to kernel to tell it about the
- *  hardware it's running on.  See Documentation/arm/setup.rst
+ *  hardware it's running on.  See Documentation/arch/arm/setup.rst
  *  for more info.
  */
 #ifndef _UAPI__ASMARM_SETUP_H

arch/arm/kernel/entry-armv.S

@@ -875,7 +875,7 @@ ENDPROC(__bad_stack)
  * existing ones.  This mechanism should be used only for things that are
  * really small and justified, and not be abused freely.
  *
- * See Documentation/arm/kernel_user_helpers.rst for formal definitions.
+ * See Documentation/arch/arm/kernel_user_helpers.rst for formal definitions.
  */
  THUMB(	.arm	)
 

arch/arm/mach-exynos/common.h

@@ -106,7 +106,7 @@ void exynos_firmware_init(void);
 #define C2_STATE	(1 << 3)
 /*
  * Magic values for bootloader indicating chosen low power mode.
- * See also Documentation/arm/samsung/bootloader-interface.rst
+ * See also Documentation/arch/arm/samsung/bootloader-interface.rst
  */
 #define EXYNOS_SLEEP_MAGIC	0x00000bad
 #define EXYNOS_AFTR_MAGIC	0xfcba0d10

arch/arm/mach-sti/Kconfig

@@ -21,7 +21,7 @@ menuconfig ARCH_STI
 	help
 	  Include support for STMicroelectronics' STiH415/416, STiH407/10 and
 	  STiH418 family SoCs using the Device Tree for discovery.  More
-	  information can be found in Documentation/arm/sti/ and
+	  information can be found in Documentation/arch/arm/sti/ and
 	  Documentation/devicetree.
 
 if ARCH_STI

arch/arm/mm/Kconfig

@@ -712,7 +712,7 @@ config ARM_VIRT_EXT
 	  assistance.
 
 	  A compliant bootloader is required in order to make maximum
-	  use of this feature.  Refer to Documentation/arm/booting.rst for
+	  use of this feature.  Refer to Documentation/arch/arm/booting.rst for
 	  details.
 
 config SWP_EMULATE
@@ -904,7 +904,7 @@ config KUSER_HELPERS
 	  the CPU type fitted to the system.  This permits binaries to be
 	  run on ARMv4 through to ARMv7 without modification.
 
-	  See Documentation/arm/kernel_user_helpers.rst for details.
+	  See Documentation/arch/arm/kernel_user_helpers.rst for details.
 
 	  However, the fixed address nature of these helpers can be used
 	  by ROP (return orientated programming) authors when creating