Documentation - Create laptops sub-directory

There are currently various laptop drivers floating about with no central
place for their documentation, which is currently scattered around the top
level Documentation/ directory.

So, as a first step, lets create a Documentation sub-directory, and update
the relevant index files. The work of then moving the existing laptop
driver related documentation will then be handled later.
Signed-off-by: NCarlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
CC: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
CC: Mattia Dongili <malattia@linux.it>
Signed-off-by: NLen Brown <len.brown@intel.com>

Documentation/00-INDEX

@@ -227,6 +227,8 @@ kref.txt
 	- docs on adding reference counters (krefs) to kernel objects.
 laptop-mode.txt
 	- how to conserve battery power using laptop-mode.
+laptops/
+	- directory with laptop related info and laptop driver documentation.
 ldm.txt
 	- a brief description of LDM (Windows Dynamic Disks).
 leds-class.txt

Documentation/laptops/00-INDEX

+00-INDEX
+	- This file