evas: Fix ordering of input event

evas: Fix ordering of input event

The previous patch 1185c40e508ca2ecc4c5e86b shows how having
two event types for the same thing (key or mouse input events)
was a bad idea. The only guaranteed order of callbacks is the
priority but even that was not enforced (since legacy or eo
style event had to come first).

Fixes T4310