ddraw: Improve IDirect3DDevice7_Load implementation.

[Alexander Dorofeyev]

Copies palette and colorkey earlier in the helper function, before copying 
image, also skips UpdateSurface when palette is missing. This prevents 
unnecessary surface (re)loads in wined3d, and gets rid of some wined3d palette 
error messages in Sacrifice.
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  dlls/ddraw/device.c |   69 +++++++++++++++++++++++++++++---------------------
  1 files changed, 40 insertions(+), 29 deletions(-)
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