Fix liblog logtags

This was broken because we didn't have logtags support in Soong.

Bug: 28989759
Change-Id: I8370a73cf14703b86aafd85e7ea74fc570c3ff0f
diff --git a/liblog/Android.bp b/liblog/Android.bp
index 7a95dbd..81a510e 100644
--- a/liblog/Android.bp
+++ b/liblog/Android.bp
@@ -24,7 +24,6 @@
 ]
 liblog_host_sources = [
     "fake_log_device.c",
-    //"event.logtags",
     "fake_writer.c",
 ]
 liblog_target_sources = [
@@ -87,6 +86,7 @@
         "-DLIBLOG_LOG_TAG=1005",
         "-DSNET_EVENT_LOG_TAG=1397638484",
     ],
+    logtags: ["event.logtags"],
     compile_multilib: "both",
     stl: "none",
 }