ciflow/xpu/193295: [inductor] Fix round-11 test config leakage and gradient tolerance

发生了什么

Round-11 CI reported two failures in the test additions. test_batch_linear_lhs_skipped_under_default_config failed on GPU runners with "The length of the sequences mismatch: 3 != 1". The guard options were applied with a class-level torch._inductor.config.patch on _BatchLinearLHSGuardConfigBase, but instantiate_device_type_tests invokes setUpClass while creating the CUDA/XPU variants because get_primary_device() rai…

摘要按规则整理自下方来源原文

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