[ACL][TESTING] Use pytest.mark.parametrize in ACL conv2d tests

[ekalda]

Parametrize the test instead of looping over a long list of configs in the test body.

[tvm-bot]

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• cc @ashutosh-arm, @leandron, @lhutton1 _{See #10317 for details}

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[ekalda]

cc @lhutton1

[lhutton1]

Thanks @ekalda, this is long overdue :)

[lhutton1]

Thanks @ekalda @leandron!