frameworks: WindowManagerService: Fix out of memory for surface error

Surface.openTransaction and Surface.closeTransaction is not reentrant.
If we are updating the mouse surface when the WindowManager is also
updating the surfaces, the global transaction can be closed too early
by the other side. The results are random runtime exceptions and
unstable surface state.

Move the mouse surface update logic to the big surfaces update
loop, together with the other surfaces update logic.

Change-Id: I38a4f264f8de59899c3ac0fdaf9d8cd520d41947