[Dock Defend] Ensure the bottom of the battery icon is always aligned

with the bottom of the other icons, even if the shield is displayed.

Bug: 255625888
Test: manual: Verify battery icon bottom stays aligned with other icon
bottoms both with and without the shield. See video attached to bug.
Change-Id: Ib203e8ce27d515a177e8371958fa43ecf8b20e74

Change-Id: I1d8c53cc2beae90f6dca14cf339733bfb085a56e