tracing: Rename enum_replace to eval_replace

The enum_replace stanza works as is for sizeof()
calls as well as enums. Rename it as well.

Link: http://lkml.kernel.org/r/20170531215653.3240-9-jeremy.linton@arm.com



Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>