server: Use consistent function names

Put verbs at the end, ie:
 console_register_poller -> console_poller_register
 console_register_handler -> console_handler_register

Change-Id: I4fa78137ce54a3f15aad87c3371569b084e47094
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
diff --git a/log-handler.c b/log-handler.c
index d931c65..29792e9 100644
--- a/log-handler.c
+++ b/log-handler.c
@@ -149,5 +149,5 @@
 	},
 };
 
-console_register_handler(&log_handler.handler);
+console_handler_register(&log_handler.handler);