sched/fair: Add snapshot of placement changes

This snapshot is taken from msm-4.19 as of commit 22d004c08a27
("sched/fair: Improve the scheduler").

Change-Id: I8fc95a4a4650de0dc36bd979d374b9335f6af774
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>

kernel/sched/sched.h

@@ -885,6 +885,13 @@ struct root_domain {
 	 * CPUs of the rd. Protected by RCU.
 	 */
 	struct perf_domain __rcu *pd;
+
+#ifdef CONFIG_SCHED_WALT
+	/* First cpu with maximum and minimum original capacity */
+	int max_cap_orig_cpu, min_cap_orig_cpu;
+	/* First cpu with mid capacity */
+	int mid_cap_orig_cpu;
+#endif
 };
 
 extern void init_defrootdomain(void);