VAAPI: Don't use swfilter for large surfaces - fallback to vaapi render

This stops using of sse copy routines for large surfaces. It introduces a fallback to the swrender - cause the statemachine wants a correctly setup m_pp after that method, if we don't care for this AddPicture will segfault.

Open for more input, e.g. better error handling.
cosinder the case that you want the debugger only break if method == VS_INTERLACEMETHOD_NONE

this is not bikeshedding. I often had to change XBMC code in order to able to debug properly.