uprobes: Update copyright notices

Add Peter Zijlstra's copyright to the uprobes code, whose
contributions to the uprobes code are not visible in the Git
history, because they were backmerged.

Also update existing copyright notices to the year 2012.
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jim Keniston <jkenisto@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-vjqxst502pc1efz7ah8cyht4@git.kernel.orgSigned-off-by: Ingo Molnar <mingo@elte.hu>

include/linux/uprobes.h

@@ -17,10 +17,11 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  *
- * Copyright (C) IBM Corporation, 2008-2011
+ * Copyright (C) IBM Corporation, 2008-2012
  * Authors:
  *	Srikar Dronamraju
  *	Jim Keniston
+ * Copyright (C) 2011-2012 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com>
  */
 
 #include <linux/errno.h>

kernel/events/uprobes.c

@@ -15,10 +15,11 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  *
- * Copyright (C) IBM Corporation, 2008-2011
+ * Copyright (C) IBM Corporation, 2008-2012
  * Authors:
  *	Srikar Dronamraju
  *	Jim Keniston
+ * Copyright (C) 2011-2012 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com>
  */
 
 #include <linux/kernel.h>