gdi: Initialize SetLayout function pointer

[Gregory M. Turner]

--

Author: Gregory M. Turner <gmt at malth.us>
Date:   Sat Mar 26 11:17:02 2011 -0700

    gdi: Initialize SetLayout function pointer
    
    Valgrind found this.  Fixes i.e.: WINEDEBUG="warn+heap" wine write

diff --git a/dlls/gdi32/driver.c b/dlls/gdi32/driver.c
index bdbb318..ed46377 100644
--- a/dlls/gdi32/driver.c
+++ b/dlls/gdi32/driver.c
@@ -165,6 +165,7 @@ static struct graphics_driver *create_driver( HMODULE module )
         GET_FUNC(SetDIBitsToDevice);
         GET_FUNC(SetDeviceClipping);
         GET_FUNC(SetDeviceGammaRamp);
+       GET_FUNC(SetLayout);
         GET_FUNC(SetMapMode);
         GET_FUNC(SetMapperFlags);
         GET_FUNC(SetPixel);