Update Barry Allen 0.9

Fix for revert (add calculate load before freq change)

The update to cpu load for cpufreq rate changes was happening after the rate
change instead of before. This switches it to update the cpu load before the
cpufreq rate change so the old frequency is used for calculating the speed
adjusted cpu load. The old frequency was used for that active time, so it should
be used for calculating the speed adjusted cpu load.

Signed-off-by: Javier Sayago <admin@lonasdigital.com>

drivers/cpufreq/cpufreq_barry_allen.c

@@ -4,7 +4,7 @@
  * Copyright (C) 2010 Google, Inc.
  * Copyright (C) 2015 Javier Sayago <admin@lonasdigital.com>
  *
- * Barry_Allen Version 0.8
+ * Barry_Allen Version 0.9
  * Last Update >> 04-06-2015
  *
  * This software is licensed under the terms of the GNU General Public
@@ -713,7 +713,7 @@ static int cpufreq_barry_allen_notifier(
 	int cpu;
 	unsigned long flags;
 
-	if (val == CPUFREQ_POSTCHANGE) {
+	if (val == CPUFREQ_PRECHANGE) {
 		pcpu = &per_cpu(cpuinfo, freq->cpu);
 		if (!down_read_trylock(&pcpu->enable_sem))
 			return 0;