[Encoding] Introduce EncodingLayoutAttrInterface. #14948

Job	Run time
setup / setup	12s
Build Packages / Linux Release (x86_64)	15m 27s
Test AMD MI250 / test_mi250	5m 49s
Test AMD MI300 / test_mi300	1m 55s
Regression Test / test_regression_suite :: cpu_llvm_task	9m 59s
Unit Test / Linux (x86_64)	2m 38s
Regression Test / test_models :: cpu_llvm_task	4m 14s
Regression Test / test_regression_suite :: amdgpu_rocm_mi250_gfx90a	8m 12s
Regression Test / test_models :: amdgpu_rocm_mi250_gfx90a	6m 58s
Regression Test / test_regression_suite :: amdgpu_rocm_mi300_gfx942	6m 18s
Test AMD W7900 / test_w7900	1m 47s
Regression Test / test_models :: amdgpu_rocm_mi300_gfx942	2m 46s
Regression Test / test_models :: amdgpu_vulkan	1m 33s
Test ONNX / test_onnx_models :: cpu_llvm_task	3m 4s
Test ONNX / test_onnx_ops :: cpu_llvm_sync	4m 8s
Test RISC-V 64 / riscv64	5m 15s
Test ONNX / test_onnx_ops :: amdgpu_rocm_rdna3	8m 55s
Test TensorFlow / Linux (x86_64)	1m 31s
Test ONNX / test_onnx_ops :: amdgpu_vulkan	1m 45s
Test Android / android_arm64	5m 50s
	1h 38m 16s

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