wifi: rtw89: fix typo of "access" in rtw89_sar_info description

The "acces" should be "access".
So, fix it.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250326020643.14487-2-pkshih@realtek.com