Remove unnecessary controller reinitialization which resulted in link flips during alias address insertion or dhclient operation. While I'm here remove dc_reset() in DC_ISR_BUS_ERR case. Device is fully reinitialized again in dc_init_locked().
Remove unnecessary controller reinitialization which resulted in
link flips during alias address insertion or dhclient operation.
While I'm here remove dc_reset() in DC_ISR_BUS_ERR case. Device is
fully reinitialized again in dc_init_locked().

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