Build libcpustats for host, but not Mac

Test: builds OK on Linux, doesn't build on Mac
Change-Id: I326d99691f45ace9ee71f92dc9af5a601bee1a0c
diff --git a/media/libcpustats/Android.bp b/media/libcpustats/Android.bp
index 3ea96c9..8fcd8a4 100644
--- a/media/libcpustats/Android.bp
+++ b/media/libcpustats/Android.bp
@@ -10,4 +10,13 @@
         "-Werror",
         "-Wall",
     ],
+
+    host_supported: true,
+
+    target: {
+        darwin: {
+            enabled: false,
+        },
+    },
+
 }