Renaming FusedOps

[fablorv]

[tinyb0t]

Changes made in tinygrad/:

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files                             insertions       deletions
------------------------------------------------------------
tinygrad/codegen/assembly_ptx.py           2               2
tinygrad/codegen/assembly_rdna.py          3               3
tinygrad/codegen/cstyle.py                 2               2
tinygrad/codegen/linearizer.py             5               5
tinygrad/codegen/llvmir.py                 2               2
tinygrad/graph.py                          3               3
tinygrad/ops.py                            5               5
tinygrad/runtime/ops_cpu.py                2               2
tinygrad/runtime/ops_torch.py              2               2
------------------------------------------------------------
total                                     26              26
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lines added in the tinygrad folder: 0

[dc-dc-dc]

adding the where op was also a part of the issue #1154, do you plan on adding it to this pr or separate ?