Upgrade the SLX 9540 FPGA Image

Confirm that the peripheral software (firmware) requires an upgrade.

If the dates are not identical, the software must be upgraded.

device# show firmware peripheral fpga 
                    
        +---------------+----------------------+-------------------------------+                   
        |     Type      |   Current Version    |   Latest Version Available   |
        +---------------+----------------------+-------------------------------+             
        |    sysfpga    |    02/09/2017(92)    |        02/09/2017(92)         |
        +---------------+----------------------+-------------------------------+

Update the software.

device# firmware peripheral-update fpga 
erasing .. ... done
programming .......................... 25% .......................... 50% .......................... 75% ......................... 100  
sysfpga image is upgraded successfully.

Reboot the device.
```
device# reload system
```