am 919bb66f: Fix libcutils build.

* commit '919bb66f73c679cf81efc6d2433ad75197891ba6':
  Fix libcutils build.
diff --git a/libcutils/sched_policy.c b/libcutils/sched_policy.c
index 83222f4..ab0331d 100644
--- a/libcutils/sched_policy.c
+++ b/libcutils/sched_policy.c
@@ -60,9 +60,11 @@
 static int bg_cgroup_fd = -1;
 static int fg_cgroup_fd = -1;
 
+#ifdef USE_CPUSETS
 // File descriptors open to /dev/cpuset/../tasks, setup by initialize, or -1 on error
 static int bg_cpuset_fd = -1;
 static int fg_cpuset_fd = -1;
+#endif
 
 /* Add tid to the scheduling group defined by the policy */
 static int add_tid_to_cgroup(int tid, int fd)