eth: add Base to known networks

Author: Tomasvrba

CHANGELOG.md

@@ -8,6 +8,7 @@ customers cannot upgrade their bootloader, its changes are recorded separately.
 
 ### [Unreleased]
 - Ethereum: add confirmation screen for known L2 networks and sidechains and change their unit to ETH
+- Ethereum: add Base to known networks
 
 ### 9.22.0
 - Update manufacturer HID descriptor to bitbox.swiss

src/rust/bitbox02-rust/src/hww/api/ethereum/params.rs

@@ -84,6 +84,13 @@ const PARAMS: &[Params] = &[
         name: "Arbitrum One",
         unit: "ETH",
     },
+    Params {
+        coin: None,
+        bip44_coin: 60 + HARDENED,
+        chain_id: 8453,
+        name: "Base",
+        unit: "ETH",
+    },
 ];
 
 /// Check if the chain_id corresponds to a known non-mainnet network.