wifi: rtw88: fix RX filter in FIF_ALLMULTI flag

wifi: rtw88: fix RX filter in FIF_ALLMULTI flag

[ Upstream commit 53ee0b3b99edc6a47096bffef15695f5a895386f ]

The broadcast packets will be filtered in the FIF_ALLMULTI flag in
the original code, which causes beacon packets to be filtered out
and disconnection. Therefore, we fix it.

Fixes: e3037485c68e ("rtw88: new Realtek 802.11ac driver")
Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231103020851.102238-1-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>