radv: Move radv_nir_* to a new folder.

Also ran clang-format on the affected code.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21971>

src/amd/vulkan/radv_pipeline.c

@@ -25,9 +25,11 @@
  * IN THE SOFTWARE.
  */
 
+#include "meta/radv_meta.h"
 #include "nir/nir.h"
 #include "nir/nir_builder.h"
 #include "nir/nir_vulkan.h"
+#include "nir/radv_nir.h"
 #include "spirv/nir_spirv.h"
 #include "util/disk_cache.h"
 #include "util/mesa-sha1.h"
@@ -35,7 +37,6 @@
 #include "util/u_atomic.h"
 #include "radv_cs.h"
 #include "radv_debug.h"
-#include "meta/radv_meta.h"
 #include "radv_private.h"
 #include "radv_shader.h"
 #include "radv_shader_args.h"