Add igb and igbvf network driver modules

[osfrickler]

The igb network driver can be used in certain scenarios which include SRIOV and network virtual functions.

[gibizer]

Works for me. Thanks

$ lspci
00:01.0 Class 0601: 8086:7000
00:04.0 Class 0100: 1af4:1001
00:00.0 Class 0600: 8086:1237
00:01.3 Class 0680: 8086:7113
00:03.0 Class 0200: 8086:10c9
00:01.1 Class 0101: 8086:7010
00:06.0 Class 00ff: 1af4:1005
00:02.0 Class 0300: 1af4:1050
00:05.0 Class 00ff: 1af4:1002

$ dmesg | grep 00:03
[    0.625975] pci 0000:00:03.0: [8086:10c9] type 00 class 0x020000
[    0.628473] pci 0000:00:03.0: reg 0x10: [mem 0xfeba0000-0xfebbffff]
[    0.630751] pci 0000:00:03.0: reg 0x14: [mem 0xfebc0000-0xfebdffff]
[    0.632625] pci 0000:00:03.0: reg 0x18: [io  0xc0c0-0xc0df]
[    0.636518] pci 0000:00:03.0: reg 0x1c: [mem 0xfebf0000-0xfebf3fff 64bit]
[    0.763063] pnp 00:03: [dma 2]
[    1.736471] igb 0000:00:03.0: added PHC on eth0
[    1.736617] igb 0000:00:03.0: Intel(R) Gigabit Ethernet Network Connection
[    1.736618] igb 0000:00:03.0: eth0: (PCIe:2.5Gb/s:Width x1) fa:16:3e:25:bc:df
[    1.736681] igb 0000:00:03.0: eth0: PBA No: 1040FF-0FF
[    1.736681] igb 0000:00:03.0: Using MSI-X interrupts. 1 rx queue(s), 1 tx queue(s)
[    2.924424] igb 0000:00:03.0 eth0: igb: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX