Cisco ASA: Activating The AnyConnect License

How to activate an anyconnect mobile license key on the Cisco ASA.

ASA(config)# activation-key 9f9k7747 38hghfd5 kf74jhtr 9ceffc1c 7764e4a6
Validating activation key. This may take a few minutes...

Licensed features for this platform:
Maximum Physical Interfaces    : Unlimited
Maximum VLANs                  : 150
Inside Hosts                   : Unlimited
Failover                       : Active/Active
VPN-DES                        : Enabled
VPN-3DES-AES                   : Enabled
Security Contexts              : 2
GTP/GPRS                       : Disabled
SSL VPN Peers                  : 2
Total VPN Peers                : 750
Shared License                 : Disabled
AnyConnect for Mobile          : Enabled
AnyConnect for Cisco VPN Phone : Disabled
AnyConnect Essentials          : Disabled
Advanced Endpoint Assessment   : Disabled
UC Phone Proxy Sessions        : 2
Total UC Proxy Sessions        : 2
Botnet Traffic Filter          : Disabled

This platform has an ASA 5520 VPN Plus license.

Both running and flash activation keys were updated with the requested key.
ASA(config)#