fix(sequencers): sequencers genesis operator address not exported

[mtsitrin]

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Closes #XXX

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[danwt]

approved but asked for clarification in a comment

[danwt]

Suggested change

	// init dymint sequencer as expected for initGenesis
	pubkey := utils.CreateTestPubKeys(1)[0]
	tmPubkey, err := cryptocodec.ToTmProtoPublicKey(pubkey)
	require.NoError(t, err)
	dymintSeq := abci.ValidatorUpdate{
	PubKey: tmPubkey,
	Power: 1,
	}
	// init dymint sequencer as expected for initGenesis, this is arbitrary/dummy
	pubkey := utils.CreateTestPubKeys(1)[0]
	tmPubkey, err := cryptocodec.ToTmProtoPublicKey(pubkey)
	require.NoError(t, err)
	dymintSeq := abci.ValidatorUpdate{
	PubKey: tmPubkey,
	Power: 1,
	}

[danwt]

a little confusing here without remembering all the details, would be good to clarify a little in a comment