Fix: muqss, missing static function, uclamp_is_used
Ref: https://github.com/zen-kernel/zen-kernel/commit/e7113f2c1d56962d4afabc627ad761c138f5b858.patch

--- patch-5.4.61-ck1	2020-09-04 22:10:44.000000000 +0800
+++ patch-5.4.62-ck1	2020-09-05 10:27:35.000000000 +0800
@@ -15665,7 +15665,7 @@
 index 000000000000..5214b158d82f
 --- /dev/null
 +++ b/kernel/sched/MuQSS.h
-@@ -0,0 +1,1005 @@
+@@ -0,0 +1,1010 @@
 +/* SPDX-License-Identifier: GPL-2.0 */
 +#ifndef MUQSS_SCHED_H
 +#define MUQSS_SCHED_H
@@ -16453,6 +16453,11 @@
 +	return util;
 +}
 +
++static inline bool uclamp_is_used(void)
++{
++	return false;
++}
++
 +#ifdef arch_scale_freq_capacity
 +#ifndef arch_scale_freq_invariant
 +#define arch_scale_freq_invariant()	(true)
@@ -16691,7 +16691,7 @@
 @@ -213,7 +219,7 @@ unsigned long schedutil_cpu_util(int cpu, unsigned long util_cfs,
  	struct rq *rq = cpu_rq(cpu);
  
- 	if (!IS_BUILTIN(CONFIG_UCLAMP_TASK) &&
+ 	if (!uclamp_is_used() &&
 -	    type == FREQUENCY_UTIL && rt_rq_is_runnable(&rq->rt)) {
 +	    type == FREQUENCY_UTIL && rt_rq_runnable(rq)) {
  		return max;