[Executorch] Add quantized kv cache to oss ci (#7212)

Pull Request resolved: https://github.com/pytorch/executorch/pull/6997

Fixes to make sure quantized kv cache works in oss
ghstack-source-id: 256718639
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//unit-test-arm broken in trunk plus complains about internal failure
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Differential Revision: [D66269487](https://our.internmc.facebook.com/intern/diff/D66269487/)

Co-authored-by: Kimish Patel <kimishpatel@fb.com>