wifi: ath11k: Increase TCL data ring size for WCN6750

Increase TCL data ring size to 2048 for WCN6750. This is
needed to meet 160 MHz TX throughput.

Add a new hw_param to indicate the TX ring size for
individual devices.

Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-QCAMSLSWPLZ-1

Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220905071805.31625-4-quic_mpubbise@quicinc.com