base-files: Move version-related functions to iopsys-fwbank.sh, remove iopsys_clear_iopversion_cache
Move version-related functions from iopsys.sh to iopsys-fwbank.sh.
base-files: Remove iopsys_clear_iopversion_cache
The iopsys_clear_iopversion_cache had been used by the target to clear the cache. We should not expose this implementation detail to the outside. Instead, clear the cached version-information when the bank's status is being changed.
Edited by Andreas Gnau