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ggml : add GGML_OP_LIGHTNING_INDEXER that implements DeepSeek V3.2/V4 lightning indexer (#24231)

• ggml : add GGML_OP_LIGHTNING_INDEXER that implements DeepSeek V3.2/V4 lightning indexer

• ggml : remove scale parameters from lightning indexer OP, add f16 mask parameter

• tests : add GGML_OP_LIGHTNING_INDEXER tests

• ggml : bump RPC version

• chore : check if lightning indexer input tensors are not transposed

• tests : count flops instead of bandwidth in lightning indexer test

• chore : add missing const

• chore : whitespace

• ggml : renamed variables in CPU lightning indexer implementation

• ggml : fix lightning indexer mask broadcasting

• tests : tests for lightning indexer mask broadcasting

• chore : whitespace

• llama : use GGML_OP_LIGHTNING_INDEXER in DeepSeek V3.2 and DeepSeek V4 models

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Co-authored-by: Stanisław Szymczyk sszymczy@gmail.com

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