[BUG] KAI_ASSUME(mr == kai_mr * kai_get_sme_vector_length_u32()); false

[ddyt123]

In TensorFlow Lite (TFLite) version 2.19, an assertion error occurs after enabling SME (Scalable Matrix Extension) and SME2 on iPhone 16.
KAI_ASSUME(mr == kai_mr * kai_get_sme_vector_length_u32());
mr = 1, kai_mr = 2, kai_get_sme_vector_length_u32()=16

[felix-johnny]

@ddyt123 ..The version of XNNPack(6a834a0) included in TF 2.19 where this function is invoked is missing a check for mr = 1. The latest version of XNNPack handles that case correctly.