[mlir][Vector] Add missing CHECK rules to vector-transfer-flatten.mlir (#82698)

This test failed after landing #81964 due to a bad merge. I provided a quick fix and this PR is adding the rest of CHECK rules that were not merged properly.

Author: dcaballe

mlir/test/Dialect/Vector/vector-transfer-flatten.mlir

@@ -476,6 +476,7 @@ func.func @regression_non_contiguous_dim_read(%subview : memref<1x3x3x2xf32, str
 //       CHECK:     %[[APPLY:.*]] = affine.apply #[[$MAP]]()
 
 // CHECK-128B-LABEL: func @regression_non_contiguous_dim_read(
+//       CHECK-128B:   memref.collapse_shape
 
 // -----
 
@@ -491,3 +492,4 @@ func.func @unsupported_non_contiguous_dim_write(%value : vector<2x2xf32>,
 //   CHECK-NOT:    memref.collapse_shape
 
 // CHECK-128B-LABEL: func @unsupported_non_contiguous_dim_write(
+//   CHECK-128B-NOT:   memref.collapse_shape