Bochs has switched from port base 0x240 to 0x300 for its default NE2000 ISA configuration, and QEMU is using the same settings. Change-Id: Ide6cdb14321eb4324d0bf6d6314c5970b3493e95
Change-Id: Ic716f336b7071063997cf5b4dae6d50e0b4631e9