opencl: OP_GATED_DELTA_NET (llama/23312)

* OP_GATED_DELTA_NET impl

* add back lanes_per_column declaration

* removed has_subgroup_arithmetic and has_subgroup_clustered_reduce

* removed trailing spaces and fixes indentation. Hard coded subgroup size for Adreno and Intel. Return not supported when K>1 state snapshot

* support for K>1 state snapshot

* removed picky indent multiple of 4 fixes

* removed return that won\'t be executed