[quant][pt2e] add all convs-relu fusion qat configs (#99586)
Currently when prepare_qat_fx with executorch backend config we do not properly quantize conv or conv - relu
To fix this we add all the necessary qat configs for conv and conv-relu
Differential Revision: [D45135947](https://our.internmc.facebook.com/intern/diff/D45135947/)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/99586
Approved by: https://github.com/jerryzh168
