PR #59937: [TFLite] Add support for int8 quantized DivOp
PR #59937: [TFLite] Add support for int8 quantized DivOp

Imported from GitHub PR https://github.com/tensorflow/tensorflow/pull/59937

This PR adds support for quantized int8 inputs and outputs to the `div` op. TFLite Micro added support for int8 quantized divides in https://github.com/tensorflow/tflite-micro/pull/1196, but until now the MLIR based converter would force the op to stay in float due to missing TFLite support for it. This PR fixes this and adds support for int8 quantized divide ops to TFLite and the converter.
Copybara import of the project:

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86b6971eab3836dd5e09fb3059c7edfd24ae99e0 by Lukas Geiger <lukas.geiger94@gmail.com>:

[TFLite] Add support for int8 quantized DivOp

Merging this change closes #59937

FUTURE_COPYBARA_INTEGRATE_REVIEW=https://github.com/tensorflow/tensorflow/pull/59937 from lgeiger:tflite-i8-div 86b6971eab3836dd5e09fb3059c7edfd24ae99e0
