wifi: rtw89: implement ops of change vif/sta links

To support MLO, implement change_vif_links() and change_sta_links() ops.
Basically, we follow arguments to set/clear links. One special thing is
that when vif is idle, i.e. no connection, link id 0 is set up by us for
default uses. So, when bitmap of vif links change from 0x0 to non-zero,
we clear the default one first. And when bitmap of vif links change from
non-zero to 0x0, we set up a default one at the end.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20241120034054.13575-4-pkshih@realtek.com