net: atlantic: extend hw_ops and TX descriptor for AQC113 PTP

net: atlantic: extend hw_ops and TX descriptor for AQC113 PTP

Extend the aq_hw_ops interface with new function pointers required for
PTP support on AQC113:
- enable_ptp: enable/disable PTP counter with clock selection
- hw_ring_tx_ptp_get_ts: read TX timestamp from descriptor writeback
- hw_tx_ptp_ring_init/hw_rx_ptp_ring_init: per-ring PTP initialization
- hw_get_clk_sel: query active TSG clock selection

Update existing hw_ops signatures to support AQC113 dual-clock
architecture:
- hw_gpio_pulse: add clk_sel and hightime parameters
- hw_extts_gpio_enable: add channel parameter

Add PTP-related hardware defines:
- AQ_HW_TXD_CTL_TS_EN/TS_TSG0 for TX descriptor timestamp control
- AQ2_HW_PTP_COUNTER_HZ for AQC113 TSG clock frequency
- AQ_HW_PTP_IRQS for PTP interrupt vector accounting
- PTP enable flags (L2/L4) and TSG clock selection constants

Add request_ts and clk_sel bitfields to aq_ring_buff_s for per-packet
TX timestamp request tracking.

Update hw_atl_b0.c (AQC107) implementations:
- Adapt gpio_pulse and extts_gpio_enable to new signatures
- Add TX descriptor timestamp bits for AQC113 when ANTIGUA chip
  feature is detected

Signed-off-by: Sukhdeep Singh <sukhdeeps@marvell.com>
Link: https://patch.msgid.link/20260610115448.272-10-sukhdeeps@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>