[PATCH] evdev: Use the EvdevPost...Event() functions in the emulation code.

[oliver.mcfadden at nokia.com]

From: Oliver McFadden <oliver.mcfadden at nokia.com>

This is similar to commit 1f641d75edba7394201c1c53938215bae696791b.

It provides the same functionality of queuing the (in this case
emulated) events and waiting until an EV_SYN synchronization event is
received before posting them to the server.

This preserves the order of events (both real and emulated) and ensures
that MotionNotify events will always be posted first. It also unifies
the event posting into a few small functions which improves
maintainability.