mlxbf-tmfifo: Add ctrl message and MAC configuration For BlueField-3 SoC

[Liming Sun]

SRU Justification:

[Impact]

This is a porting commit from https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/1927253.

[Fix]
* N/A

[Test Case]
* Set DISPLAY_LEVEL to 1 in /dev/rshim0/misc and do 'cat /dev/rshim0/misc' from external rshim driver.
  The rshim MAC address will show up.

# cat /dev/rshim0/misc
DISPLAY_LEVEL 1 (0:basic, 1:advanced, 2:log)
BOOT_MODE 1 (0:rshim, 1:emmc, 2:emmc-boot-swap)
BOOT_TIMEOUT 100 (seconds)
DROP_MODE 0 (0:normal, 1:drop)
SW_RESET 0 (1: reset)
DEV_NAME usb-1-1.1
DEV_INFO BlueField-2(Rev 0)
OPN_STR MBF2M516A-EEEO
BOOT_RESET_SKIP 0 (1: skip)
PEER_MAC 00:1a:ca:ff:ff:01 (rw)
PXE_ID 0x00000000 (rw)
VLAN_ID 0 0 (rw)
* echo "PEER_MAC xx:xx:xx:xx:xx:xx" > /dev/rshim0/misc to modify the MAC address, which will take effect in next boot.

[Regression Potential]
* This is a new enhancement and is backward-compatible with previous behavior.

[Liming Sun (limings)]

Tim, Thanks for the code review. I got the Acked-by email but haven't seen it in the jammy repo yet.
Do you know when this change might be pushed?