Receving VLAN oversized frames raise SIS_ISR_RX_ERR interrupt, so make sis_rxeof() handle that too. Previously it used to receive the frame and reset controller.
Receving VLAN oversized frames raise SIS_ISR_RX_ERR interrupt, so
make sis_rxeof() handle that too. Previously it used to receive the
frame and reset controller.

PR:	kern/131414

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase