Documentation: update GregKH links

Fixed the broken links in the SubmittingPatches file.

[ The old links turn out to not be broken after all, but the new links
  are certainly more readable - Linus ]

Signed-off-by: Vikram Narayanan <vikram186@gmail.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Documentation/SubmittingPatches

@@ -714,10 +714,11 @@ Jeff Garzik, "Linux kernel patch submission format".
   <http://linux.yyz.us/patch-format.html>
 
 Greg Kroah-Hartman, "How to piss off a kernel subsystem maintainer".
-  <http://www.kroah.com/log/2005/03/31/>
+  <http://www.kroah.com/log/linux/maintainer.html>
-  <http://www.kroah.com/log/2005/07/08/>
+  <http://www.kroah.com/log/linux/maintainer-02.html>
-  <http://www.kroah.com/log/2005/10/19/>
+  <http://www.kroah.com/log/linux/maintainer-03.html>
-  <http://www.kroah.com/log/2006/01/11/>
+  <http://www.kroah.com/log/linux/maintainer-04.html>
+  <http://www.kroah.com/log/linux/maintainer-05.html>
 
 NO!!!! No more huge patch bombs to linux-kernel@vger.kernel.org people!
   <http://marc.theaimsgroup.com/?l=linux-kernel&m=112112749912944&w=2>