watchdog: Reorganize header and function names

This is a refactoring of names + header cleanup and has no functional
change.

Change-Id: Ie90fded80b6a26927f56bb342993193530b8b8ef
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/apphandler.cpp b/apphandler.cpp
index 84cf3c9..47a165b 100644
--- a/apphandler.cpp
+++ b/apphandler.cpp
@@ -533,7 +533,7 @@
     ipmi_register_callback(NETFUN_APP,
                            IPMI_CMD_RESET_WD,
                            NULL,
-                           ipmi_app_reset_watchdog,
+                           ipmi_app_watchdog_reset,
                            PRIVILEGE_OPERATOR);
 
     // <Set Watchdog Timer>
@@ -543,7 +543,7 @@
     ipmi_register_callback(NETFUN_APP,
                            IPMI_CMD_SET_WD,
                            NULL,
-                           ipmi_app_set_watchdog,
+                           ipmi_app_watchdog_set,
                            PRIVILEGE_OPERATOR);
 
     // <Get Device ID>