add long-press A triggers mount_all for FujiMac

[benjamink]

Long-pressing the A button will trigger a mount_all for FujiMac devices.

Not sure how to fix the formatting of the console output but it works:

BUTTON_A: LONG PRESS
ACTION: Mount all disks
::mount {6} "bbspi.home.skdev.org"
                                  ::mount_local Attempting mount of "bbspi.home.skdev.org"
                                                                                          ::mount_tnfs {6:2} "bbspi.home.skdev.org"
                                                                                                                                   ::mount_tnfs Currently connected to host "bbspi.ho"
                                                                                                                                                                                     :
                                                                                                                                                                                     "
                                                                                                                                                                                     )
File opened, handle ID: 1, size: 234881024, pos: 0
::get_filesize

              Mounting Media Type DSK for DCD
                                             active disk 0

[tschak909]

Thank you!