Added known issues about dhcpd and wifi security

Signed-off-by: pierantoniomerlino <[email protected]>

kura/distrib/RELEASE_NOTES.txt

@@ -63,6 +63,8 @@ Target Platform Updates:
   * f45421ebef - Protobuf update to 3.25.5 [backport 5.6.0] (#5431) (#5450) (Matteo Maiero)
 
 Known Issues:
+  * During a wifi scan, some access points with the WPA/WPA2 wifi security are recognized as WPA.
+  * On devices with Ubuntu 20.04, the DHCP server provided by isc-dhcp-server may not assign an IP address to the clients. Use dnsmasq instead.
   * Snapshot rollback operation may fail processing factory component configurations.
   * The firewall rule applied by the network threat manager that block uncommon TCP MSS values is not applied in the Nvidia Jetson Nano.
   * When the IPv6 network threat manager is disabled, the filtering on TCP fragments is disabled only after a reboot.