Use liblog for liblog (instead of libcutils)

Because one wouldn't use libcutils if there is a liblog.

Bug: http://b/31289077
Bug: http://b/27171986
Test: remove liblog from libcutils and make
Change-Id: I5e7eb3a67a483835933e1b5587d43b697e39ceac
diff --git a/runtime/Android.bp b/runtime/Android.bp
index 6234a84..ad953ea 100644
--- a/runtime/Android.bp
+++ b/runtime/Android.bp
@@ -382,7 +382,8 @@
         "libnativeloader",
         "libbacktrace",
         "liblz4",
-        // For liblog, atrace, properties, ashmem, set_sched_policy and socket_peer_is_trusted.
+        "liblog",
+        // For atrace, properties, ashmem, set_sched_policy and socket_peer_is_trusted.
         "libcutils",
         // For common macros.
         "libbase",