wifi: rtw88: debug: remove wrapper of rtw_dbg()

Remove unnecessary wrapper of rtw_dbg(), and just call it directly.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231122061429.34487-1-pkshih@realtek.com