logd: readlog apps get logger_entry_v4

Adds the uid field to outgoing content for readlog applications.
AID_LOG, AID_ROOT and AID_SYSTEM gain access to the information.

Bug: 25996918
Change-Id: I0254303c19d174cbf5e722c38844be5c54410c85
diff --git a/logd/LogBufferElement.h b/logd/LogBufferElement.h
index 09987ea..e7f88b9 100644
--- a/logd/LogBufferElement.h
+++ b/logd/LogBufferElement.h
@@ -80,7 +80,7 @@
     uint32_t getTag(void) const;
 
     static const uint64_t FLUSH_ERROR;
-    uint64_t flushTo(SocketClient *writer, LogBuffer *parent);
+    uint64_t flushTo(SocketClient *writer, LogBuffer *parent, bool privileged);
 };
 
 #endif