cpufreq: arm_big_little: free OPP table created during ->init()

OPP layer now supports freeing of OPPs and we should free them once they aren't
useful anymore.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/cpufreq/arm_big_little.h b/drivers/cpufreq/arm_big_little.h
index 70f18fc..a211f7d 100644
--- a/drivers/cpufreq/arm_big_little.h
+++ b/drivers/cpufreq/arm_big_little.h
@@ -25,13 +25,16 @@
 
 struct cpufreq_arm_bL_ops {
 	char name[CPUFREQ_NAME_LEN];
-	int (*get_transition_latency)(struct device *cpu_dev);
 
 	/*
 	 * This must set opp table for cpu_dev in a similar way as done by
 	 * of_init_opp_table().
 	 */
 	int (*init_opp_table)(struct device *cpu_dev);
+
+	/* Optional */
+	int (*get_transition_latency)(struct device *cpu_dev);
+	void (*free_opp_table)(struct device *cpu_dev);
 };
 
 int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops);