wifi: rtw89: rfk: support IQK firmware command v1

Add new IQK firmware command format v1 (with suffix), and rename original
command format to v0 for older firmware.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250606020302.16873-4-pkshih@realtek.com