net: atlantic: add AQC113 hardware register definitions and accessors

net: atlantic: add AQC113 hardware register definitions and accessors

Add low-level hardware register definitions and accessor functions
for AQC113 (Antigua) chip features:

- L3/L4 filter command, tag, and address registers for IPv4/IPv6
- Ethertype filter tag registers
- TSG (Time Stamp Generator) clock control, modification, and
  GPIO event generation/input timestamp registers
- TX descriptor timestamp writeback, timestamp enable, and AVB
  enable registers
- TX data/descriptor read request limit registers
- TPB highest priority TC registers
- PCIe extended tag enable register
- RX descriptor timestamp request register
- Action resolver section enable getter
- GPIO special mode and TSG external GPIO TS input select

Signed-off-by: Sukhdeep Singh <sukhdeeps@marvell.com>
Link: https://patch.msgid.link/20260610115448.272-5-sukhdeeps@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>