wifi: rtw89: phy: support EDCCA per PHY

Dynamic mechanism EDCCA (Energy Detection Clear Channel Assessment) is to
dynamically adjusted to make EDCCA suitable for situations.

Use PHY context to support two PHY.

For the EDCCA log part, registers to report EDCCA for PHY 1 is not a
simple offset from PHY 0, so add them by separate patch.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250117072828.16728-7-pkshih@realtek.com