fix: hardcoded ledger algo on keys add (backport cosmos#9766) (cosm…

…os#9803)

* fix: hardcoded ledger algo on `keys add` (cosmos#9766)

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## Description

Closes: cosmos#9734

cc: @jleni

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(cherry picked from commit f1e6487)

# Conflicts:
#	CHANGELOG.md

* fix conflics

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>
Co-authored-by: Amaury M <1293565+amaurym@users.noreply.github.com>

CHANGELOG.md

@@ -37,6 +37,10 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## [Unreleased]
 
+### Bug Fixes
+
+* [\#9766](https://github.com/cosmos/cosmos-sdk/pull/9766) Fix hardcoded ledger signing algorithm on `keys add` command.
+
 ### Features
 
 * [\#9750](https://github.com/cosmos/cosmos-sdk/pull/9750) Emit events for tx signature and sequence, so clients can now query txs by signature (`tx.signature='<base64_sig>'`) or by address and sequence combo (`tx.acc_seq='<addr>/<seq>'`).