en to en_GB translation catalogue (3 entries)

en: You are not authorized to mount this device.
en_GB: You are not authorised to mount this device.

[ctx: Remove is less technical for unmount]
en: You are not authorized to remove this device.
en_GB: You are not authorised to remove this device.

en: You are not authorized to eject this disc.
en_GB: You are not authorised to eject this disc.
