[Mesa-dev] Build error since gallium: add pipe_screen_config to screen_create functions

[Andy Furniss]

make[4]: Entering directory 
'/mnt/sdb1/Gits/mesa/src/gallium/targets/pipe-loader'
   CC       pipe_radeonsi.lo
pipe_radeonsi.c: In function ‘create_screen’:
pipe_radeonsi.c:15:34: error: ‘flags’ undeclared (first use in this 
function)
     rw = amdgpu_winsys_create(fd, flags, radeonsi_screen_create);
                                   ^
pipe_radeonsi.c:15:34: note: each undeclared identifier is reported only 
once for each function it appears in
Makefile:991: recipe for target 'pipe_radeonsi.lo' failed