x86: qemu: Convert to use driver model eth

Move to driver model for ETH (e1000) on QEMU.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/board/emulation/qemu-x86/Makefile b/board/emulation/qemu-x86/Makefile
index ad2bbb9..a855255 100644
--- a/board/emulation/qemu-x86/Makefile
+++ b/board/emulation/qemu-x86/Makefile
@@ -4,4 +4,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-y	+= qemu-x86.o start.o
+obj-y	+= start.o