[PATCH] ppc64: fix rtas error log location

From: Anton Blanchard <anton@samba.org>

From: Nathan Lynch <nathanl@austin.ibm.com>

Somehow we've been placing the rtas error_log file at /proc/ppc64/error_log,
which breaks at least one application I know of.  It is supposed to be at
/proc/ppc64/rtas/error_log (this is the 2.4 behavior).

arch/ppc64/kernel/rtasd.c

@@ -450,7 +450,7 @@ static int __init rtas_init(void)
 		return 1;
 	}
 
-	entry = create_proc_entry("ppc64/error_log", S_IRUSR, NULL);
+	entry = create_proc_entry("ppc64/rtas/error_log", S_IRUSR, NULL);
 	if (entry)
 		entry->proc_fops = &proc_rtas_log_operations;
 	else