Change TLOGI calls in normal execution path to TLOGD

The log statements clutter the early boot log.

Bug: 184759599
Change-Id: Ibe5b286a440fe11c94ded2b5db357623fa589799
diff --git a/ipc/gatekeeper_ipc.cpp b/ipc/gatekeeper_ipc.cpp
index 889ed4f..9994697 100644
--- a/ipc/gatekeeper_ipc.cpp
+++ b/ipc/gatekeeper_ipc.cpp
@@ -297,7 +297,7 @@
     long rc;
     uevent_t event;
 
-    TLOGI("Initializing\n");
+    TLOGD("Initializing\n");
 
     device = new TrustyGateKeeper();