mount/unmount in addond option for op3-ce
mount/unmount in addond option for op3-ce

The installer will only mount the system partition at the beggining, only if the addon.d option is selected in the aroma.
It avoid useless mount/unmount.
Nevax07/FreedomOS,Nevax07/FreedomOS,Nevax07/FreedomOS,Nevax07/FreedomOS