sycl: add ROLL operation support (#16665)

* sycl: add ROLL operation support

- Implement ggml_sycl_roll function for F32 tensors
- Add multi-axis roll operation with SYCL kernel
- Support all 4 tensor dimensions with proper shift normalization
- Add roll.cpp and roll.hpp to SYCL backend
- Update backend dispatch and supports_op for GGML_OP_ROLL
- Tests: 17662/17662 pass with identical CPU reference results

* fix: remove trailing whitespace from roll.cpp

- Fix EditorConfig violations in ggml/src/ggml-sycl/roll.cpp
- Remove trailing spaces from lines 6, 11, 28, 47, 58, 60

* ci: retrigger

* sycl: remove wait() calls from ROLL operation

* fix: editorconfig — LF endings + final newline for roll.hpp

---------

Co-authored-by: tamarPal <tamarPal@example.com>

ggml/src/ggml-sycl/ggml-sycl.cpp

@@ -3921,6 +3921,9 @@ static bool ggml_sycl_compute_forward(ggml_backend_sycl_context & ctx, struct gg
         case GGML_OP_GATED_LINEAR_ATTN:
             ggml_sycl_op_gated_linear_attn(ctx, dst);
             break;
+        case GGML_OP_ROLL:
+            ggml_sycl_roll(ctx, dst);
+            break;
         case GGML_OP_ARANGE:
             ggml_sycl_arange(ctx, dst);
             break;
@@ -4599,6 +4602,8 @@ static bool ggml_backend_sycl_device_supports_op(ggml_backend_dev_t dev, const g
         case GGML_OP_RWKV_WKV7:
         case GGML_OP_GATED_LINEAR_ATTN:
             return true;
+        case GGML_OP_ROLL:
+            return op->type == GGML_TYPE_F32;
         case GGML_OP_ARANGE:
             return op->type == GGML_TYPE_F32;
         default: