Adding SIOCGIFNAME support in Linuxulator. This should silence the console warning associated
with linux-opera:
linux: pid 23492 (opera): ioctl fd=5, cmd=0x8910 ('\M^I',16) is not implemented
linux: pid 23492 (opera): ioctl fd=28, cmd=0x8910 ('\M^I',16) is not implemented
...

Reviewed by: kib, marcel, dchagin
Tested with: linux-opera-12.16_3
MFC after: 1 month