Synopsys devices

configname: CONFIG_NET_VENDOR_SYNOPSYS

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Ethernet driver support
└─>Synopsys devices
In linux kernel since version 4.1 (release Date: 2015-06-21)  
If you have a network (Ethernet) device belonging to this class, say Y.

Note that the answer to this question doesn't directly affect the
kernel: saying N will just cause the configurator to skip all
the questions about Synopsys devices. If you say Y, you will be asked
for your specific device in the following questions.