lib/cyw43-driver: Update driver to latest version.

Changes since the previous version:
- remove mDNS
- implement lwIP IGMP MAC filter callback
- implement IPv6 support
- allow building with IGMP disabled
- fix handshake meggase WAIT_G1 event value
- increase EAPOL timeout from 2500ms to 500ms
- add function to get RSSI
- fix handling of open security networks
- remove support for automatically setting auth type

Signed-off-by: Damien George <damien@micropython.org>

lib/cyw43-driver

@@ -1 +1 @@
-Subproject commit 2ab6ca93f9cd044bc6f35c1403b1284e4161294a
+Subproject commit 2cf328d9e41603405a037a29e081a7d30dd519e6