meta-ampere: mtjade: Add Host firmware update support

Enable flash_bios feature and configure to use backend script to flash
UEFI firmware via Redfish, WebUI and Rest.

Tested:
1. Flash UEFI firmware via WebUI.
2. Flash UEFI firmware via Redfish UpdateService
3. Flash UEFI firmware via Rest interface.

Signed-off-by: Thang Q. Nguyen <thang@os.amperecomputing.com>
Change-Id: I772e6a409414e374ed01e72e3c69985d0b413cb5
6 files changed