bus: brcmstb_gisb: Added support for 74165 register layout

BCM74165 introduces a new register layout which is different from
previously taped out chips, match the documented compatible and use the
appropriate table of register offsets.

Link: https://lore.kernel.org/r/20240111231539.783785-3-florian.fainelli@broadcom.com


Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>