wifi: rtw89: 8922a: update BA CAM number to 24

The total BA CAM number of 8922a is 32 instead of 16, and initial 8
entries are dynamic, so update the entry number to 24.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240108091134.67007-5-pkshih@realtek.com