use controller module address instead of module name for NewMsgChannelOpenInit (backport cosmos#2568) (cosmos#2608)

* use controller module address instead of module name for NewMsgChannelOpenInit (cosmos#2568)

In controller keeper's `registerInterchainAccount` we execute a `MsgChannelOpenInit` to set up an ica channel. Currently, we have [`icatypes.ModuleName`](https://github.com/cosmos/ibc-go/blob/95cec44c9fb10a2e84a327cdd98c7d588f091f42/modules/apps/27-interchain-accounts/controller/keeper/account.go#L63) as the msg signer. This is not good because the [`ValidateBasic()`](https://github.com/cosmos/ibc-go/blob/692790402a033c1d9647c1e1eded5351332283bf/modules/core/04-channel/types/msgs.go#L34) of `MsgChannelOpenInit` has check if msg signer is bech32 or not.

ref cosmos#2566

closes: cosmos#2559

---

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- [ ] Updated relevant documentation (`docs/`) or specification (`x/<module>/spec/`)
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(cherry picked from commit 6105db4)

* resolving conflicts

Co-authored-by: khanh-notional <50263489+catShaark@users.noreply.github.com>
Co-authored-by: Damian Nolan <damiannolan@gmail.com>

Author: 3 people

modules/apps/27-interchain-accounts/controller/keeper/account.go

@@ -3,6 +3,7 @@ package keeper
 import (
 	sdk "github.com/line/lbm-sdk/types"
 	sdkerrors "github.com/line/lbm-sdk/types/errors"
+	authtypes "github.com/line/lbm-sdk/x/auth/types"
 
 	icatypes "github.com/line/ibc-go/v3/modules/apps/27-interchain-accounts/types"
 	channeltypes "github.com/line/ibc-go/v3/modules/core/04-channel/types"
@@ -56,7 +57,7 @@ func (k Keeper) RegisterInterchainAccount(ctx sdk.Context, connectionID, owner s
 		return err
 	}
 
-	msg := channeltypes.NewMsgChannelOpenInit(portID, string(versionBytes), channeltypes.ORDERED, []string{connectionID}, icatypes.PortID, icatypes.ModuleName)
+	msg := channeltypes.NewMsgChannelOpenInit(portID, string(versionBytes), channeltypes.ORDERED, []string{connectionID}, icatypes.PortID, authtypes.NewModuleAddress(icatypes.ModuleName).String())
 	handler := k.msgRouter.Handler(msg)
 
 	res, err := handler(ctx, msg)