Fix e1000 driver bug causing packet_send() to fail in QEMU
Fix e1000 driver bug causing packet_send() to fail in QEMU

QEMU requires that the Bus Mastering bit of the PCI Command Field
of the e1000 is set, else QEMU will read zeroes from the TX
descriptors.

escortkeel/k-os,escortkeel/k-os,escortkeel/k-os