rename sharded_layout => blocked_layout

test/Triton/vecadd.mlir

@@ -1,3 +1,5 @@
+// RUN: triton-opt %s -tritongpu-verifier -verify-diagnostics
+
 module {
   func @add_kernel__Pfp32_Pfp32_Pfp32_i32_i32_i32__(%arg0: !tt.ptr<f32>, %arg1: !tt.ptr<f32>, %arg2: !tt.ptr<f32>, %arg3: i32, %arg4: i32, %arg5: i32) {
     %0 = tt.get_program_id {axis = 0 : i32} : i32

test/TritonGPU/layout.mlir

@@ -1,13 +1,13 @@
 // RUN: triton-opt %s -split-input-file -verify-diagnostics
 
-#reg = #triton_gpu.sharded_layout<{
+#reg = #triton_gpu.blocked_layout<{
   threadTileSize = [1, 1],
   warpTileSize = [32, 1],
   blockTileSize = [64, 1],
   order = [0]
 }>
 
-#reg2 = #triton_gpu.sharded_layout<{
+#reg2 = #triton_gpu.blocked_layout<{
   threadTileSize = [2, 1],
   warpTileSize = [64, 1],
   blockTileSize = [128, 1],