Yocto 2.3

Move OpenBMC to Yocto 2.3(pyro).

Tested: Built and verified Witherspoon and Palmetto images
Change-Id: I50744030e771f4850afc2a93a10d3507e76d36bc
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Resolves: openbmc/openbmc#2461
diff --git a/import-layers/yocto-poky/meta/conf/machine/qemuppc.conf b/import-layers/yocto-poky/meta/conf/machine/qemuppc.conf
index 9d174bc..a9ef64b 100644
--- a/import-layers/yocto-poky/meta/conf/machine/qemuppc.conf
+++ b/import-layers/yocto-poky/meta/conf/machine/qemuppc.conf
@@ -18,4 +18,4 @@
 QB_KERNEL_CMDLINE_APPEND = "console=tty console=ttyS0"
 # Add the 'virtio-rng-pci' device otherwise the guest may run out of entropy
 QB_OPT_APPEND = "-show-cursor -usb -usbdevice tablet -device virtio-rng-pci"
-QB_TAP_OPT = "-netdev tap,id=net0,ifname=@TAP@,script=no,downscript=no -device virtio-net-pci,netdev=net0,mac=@MAC@"
+QB_TAP_OPT = "-netdev tap,id=net0,ifname=@TAP@,script=no,downscript=no"