boot.json should't be modified by the MuditaOS
and it also causes issue with broken boot.json
after update
Signed-off-by: Lucjan Bryndza <lucjan.bryndza@mudita.com>
Functions were refactored and renamed for better readability.
Some of them were moved to different files. In stat_vfs function
the order of member initializations was corrected.
Disk access was not protected by the mutex and race contition
occurs when multiple access was made for lfs and fat.
Signed-off-by: Lucjan Bryndza <lucjan.bryndza@mudita.com>
