Linux build: No such file or directory  #include "../render/SDL_sysrender.h"

There seems to be some issue with relative include paths on linux. I got
```
external/bazelregistry_sdl2/src/video/SDL_surface.c:29:10: fatal error: ../render/SDL_sysrender.h: No such file or directory
 #include "../render/SDL_sysrender.h"
```

when using dependency ```deps =  ["@bazelregistry_sdl2//:SDL2_lib"]```