meta-ampere: mac-update: MAC update with static IP

When the IP Address is configured to static IP, changing BMC MAC Address
in FRU does not change the MAC address in eth0. This commit fixes the
issue by adding IPMI MAC address update and some other configuration via
ipmitool lan set commands to ampere_update_mac.sh to ensure the update
is taking effect.

Signed-off-by: HuyLe <hule@amperecomputing.com>
Signed-off-by: Chau Ly <chaul@amperecomputing.com>
Change-Id: Ib0466ee130af6d294fed03587c4d96328221d017