cpufreq: armada-8k: Fix off by one in armada_8k_cpufreq_free_table()

The freq_tables[] array has num_possible_cpus() elements so, to avoid an
out of bounds access, this loop should be capped at "< nb_cpus" instead
of "<= nb_cpus".  The freq_tables[] array is allocated in
armada_8k_cpufreq_init().

Cc: stable@vger.kernel.org
Fixes: f525a67 ("cpufreq: ap806: add cpufreq driver for Armada 8K")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

Author: Dan Carpenter

drivers/cpufreq/armada-8k-cpufreq.c

@@ -103,7 +103,7 @@ static void armada_8k_cpufreq_free_table(struct freq_table *freq_tables)
 {
 	int opps_index, nb_cpus = num_possible_cpus();
 
-	for (opps_index = 0 ; opps_index <= nb_cpus; opps_index++) {
+	for (opps_index = 0 ; opps_index < nb_cpus; opps_index++) {
 		int i;
 
 		/* If cpu_dev is NULL then we reached the end of the array */