turnip: Use libdrm shim

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21636>

src/freedreno/vulkan/tu_knl.c

@@ -8,9 +8,6 @@
  */
 
 #include <fcntl.h>
-#ifdef HAVE_LIBDRM
-#include <xf86drm.h>
-#endif
 
 #ifdef MAJOR_IN_MKDEV
 #include <sys/mkdev.h>
@@ -19,6 +16,8 @@
 #include <sys/sysmacros.h>
 #endif
 
+#include "util/libdrm.h"
+
 #include "tu_device.h"
 #include "tu_knl.h"
 
@@ -158,7 +157,6 @@ tu_physical_device_try_create(struct vk_instance *vk_instance,
                               struct _drmDevice *drm_device,
                               struct vk_physical_device **out)
 {
-#ifdef HAVE_LIBDRM
    struct tu_instance *instance =
       container_of(vk_instance, struct tu_instance, vk);
 
@@ -252,7 +250,4 @@ out:
    drmFreeVersion(version);
 
    return result;
-#else
-   return VK_ERROR_INCOMPATIBLE_DRIVER;
-#endif
 }