sonypi - Move sonypi.txt to Documentation/laptops

Also update references to sonypi.txt in Kconfig.
Signed-off-by: NCarlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
CC: Mattia Dongili <malattia@linux.it>
Signed-off-by: NLen Brown <len.brown@intel.com>

Documentation/00-INDEX

@@ -353,8 +353,6 @@ sh/
 	- directory with info on porting Linux to a new architecture.
 smart-config.txt
 	- description of the Smart Config makefile feature.
-sonypi.txt
-	- info on Linux Sony Programmable I/O Device support.
 sound/
 	- directory with info on sound card support.
 sparc/

Documentation/laptops/00-INDEX

@@ -2,5 +2,7 @@
 	- This file
 sony-laptop.txt
 	- Sony Notebook Control Driver (SNC) Readme.
+sonypi.txt
+	- info on Linux Sony Programmable I/O Device support.
 thinkpad-acpi.txt
 	- information on the (IBM and Lenovo) ThinkPad ACPI Extras driver.

drivers/char/Kconfig

@@ -875,7 +875,7 @@ config SONYPI
 	  Device which can be found in many (all ?) Sony Vaio laptops.
 
 	  If you have one of those laptops, read
-	  <file:Documentation/sonypi.txt>, and say Y or M here.
+	  <file:Documentation/laptops/sonypi.txt>, and say Y or M here.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called sonypi.