linux-gbmc: add udc support flag for aspeed-g7

Google-Bug-Id: 441788594
Tested: image can build with udc-nic enabled
Change-Id: I037dbe77e1fab8c8d7609476e2096d297bcbea2c
Signed-off-by: Yuxiao Zhang <yuxiaozhang@google.com>
diff --git a/recipes-kernel/linux/linux-gbmc.inc b/recipes-kernel/linux/linux-gbmc.inc
index 884e7cd..d406c5c 100644
--- a/recipes-kernel/linux/linux-gbmc.inc
+++ b/recipes-kernel/linux/linux-gbmc.inc
@@ -35,6 +35,7 @@
 UDC_NIC_SUPPORTED = "0"
 UDC_NIC_SUPPORTED:npcm7xx = "1"
 UDC_NIC_SUPPORTED:npcm8xx = "1"
+UDC_NIC_SUPPORTED:aspeed-g7 = "1"
 
 PACKAGECONFIG[usb-host] = ""
 USB_HOST_SUPPORTED = "0"