cutils: Add support for reading a processes scheduler policy

Signed-off-by: San Mehat <san@google.com>
diff --git a/include/cutils/sched_policy.h b/include/cutils/sched_policy.h
index efa7cbc..eaf3993 100644
--- a/include/cutils/sched_policy.h
+++ b/include/cutils/sched_policy.h
@@ -27,6 +27,7 @@
 } SchedPolicy;
 
 extern int set_sched_policy(int tid, SchedPolicy policy);
+extern int get_sched_policy(int tid, SchedPolicy *policy);
 
 #ifdef __cplusplus
 }