[FIX] Cfm: Fix kEplApiSdoBusyIntern after CN reset command

The intermediate state InternalAbort must be left, when SDO connection is
closed after node reset or IdentResponse. Otherwise it remains in this
state and the application isn't allowed anymore to perform SDO transfers
to this CN.

Signed-off-by: Daniel Krueger <daniel.krueger@systec-electronic.com>