Always log chosen security type

It's often useful to see if encryption was used, and how the user
authenticated (if at all).
diff --git a/common/rfb/SSecurityVeNCrypt.cxx b/common/rfb/SSecurityVeNCrypt.cxx
index 9e4260f..39647f6 100644
--- a/common/rfb/SSecurityVeNCrypt.cxx
+++ b/common/rfb/SSecurityVeNCrypt.cxx
@@ -157,7 +157,7 @@
     if (!haveChosenType)
       chosenType = secTypeInvalid;
 
-    vlog.debug("Choosing security type %s (%d)", secTypeName(chosenType),
+    vlog.info("Client requests security type %s (%d)", secTypeName(chosenType),
 	       chosenType);
 
     /* Set up the stack according to the chosen type */