Quiet down web proxy vlogs

There is a periodic wakeup VLOG which is very annoying and makes it hard
to debug what is going on.  Move it to a higher vlog

Change-Id: I6a34d46975eca28c64292081f0fef3f00079f399
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/aos/network/web_proxy.cc b/aos/network/web_proxy.cc
index a486b94..6ea88cc 100644
--- a/aos/network/web_proxy.cc
+++ b/aos/network/web_proxy.cc
@@ -140,7 +140,7 @@
   epoll->BeforeWait([]() {
     const uint64_t to = tmr_next_timeout(tmrl_get());
     if (to != 0) {
-      VLOG(1) << "Next timeout " << to;
+      VLOG(3) << "Next timeout " << to;
     }
     // Note: this only works because we are spinning on it...
     // TODO(austin): If we choose to actually sleep, use a timerfd reserved just