wifi: rtw89: wow: enable beacon filter after swapping firmware

To avoid wake up by AP disconnection, but no beacon filter setting and
driver can't disconnect successfully. We need to enable beacon filter
after swapping firmware in WoWLAN mode.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240620055825.17592-7-pkshih@realtek.com