radv: fix build

Fixes: 9b9ccee4d64 ("radv: take LDS into account for compute shader occupancy stats")
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
diff --git a/src/amd/vulkan/radv_shader.c b/src/amd/vulkan/radv_shader.c
index 3e5edcc..9a05b3c 100644
--- a/src/amd/vulkan/radv_shader.c
+++ b/src/amd/vulkan/radv_shader.c
@@ -749,7 +749,7 @@
 				     lds_increment);
 	} else if (stage == MESA_SHADER_COMPUTE) {
 		unsigned max_workgroup_size =
-				ac_nir_get_max_workgroup_size(chip_class, variant->nir);
+				radv_nir_get_max_workgroup_size(chip_class, variant->nir);
 		lds_per_wave = (conf->lds_size * lds_increment) /
 			       DIV_ROUND_UP(max_workgroup_size, 64);
 	}