anv: adjust headers for non-GNU after e9e1e0362b

src/intel/vulkan/anv_device.c:27:10: fatal error: 'sys/sysmacros.h' file not found
 #include <sys/sysmacros.h>
          ^~~~~~~~~~~~~~~~~

Fixes: e9e1e036 ("anv: implement VK_EXT_physical_device_drm")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11516>

src/intel/vulkan/anv_device.c

@@ -24,7 +24,12 @@
 #include <assert.h>
 #include <stdbool.h>
 #include <string.h>
+#ifdef MAJOR_IN_MKDEV
+#include <sys/mkdev.h>
+#endif
+#ifdef MAJOR_IN_SYSMACROS
 #include <sys/sysmacros.h>
+#endif
 #include <sys/mman.h>
 #include <sys/stat.h>
 #include <unistd.h>