sched/ext: Fix unmatch trailing comment of CONFIG_EXT_GROUP_SCHED

The #endif trailing comment of CONFIG_EXT_GROUP_SCHED is unmatched, so fix
it.

Signed-off-by: Zhang Qiao <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>

Author: Zhang Qiao

kernel/sched/ext.c

@@ -589,7 +589,7 @@ struct sched_ext_ops {
 	 * Update @tg's weight to @weight.
 	 */
 	void (*cgroup_set_weight)(struct cgroup *cgrp, u32 weight);
-#endif	/* CONFIG_CGROUPS */
+#endif	/* CONFIG_EXT_GROUP_SCHED */
 
 	/*
 	 * All online ops must come before ops.cpu_online().