meta-ampere: usbnet: explicit configure usb0 as static IP

usb0 is a virtual USB Ethernet which is configured to static IP
192.168.0.10 in /etc/systemd/network/00-bmc-usb0.network without DHCP
parameter with expecting that DHCP=no.
However, IPMI and Redfish report IP source as DHCP, not static.
This commit explicitly specifies in network configuration as DHCP=no so
that IPMI and Redfish report correctly.

Tested:
1. Check address source for usb0 via IPMI
 # ipmitool lan print 3 | grep "IP Address Source"
 IP Address Source       : Static Address
2. Check address source for usb0 via Redfish

Signed-off-by: Thang Q. Nguyen <thang@os.amperecomputing.com>
Change-Id: Id14bfc289da6d36552bd37448ec1e4c30ff32a0a
diff --git a/meta-ampere/meta-common/recipes-ampere/network/ampere-usbnet/00-bmc-usb0.network b/meta-ampere/meta-common/recipes-ampere/network/ampere-usbnet/00-bmc-usb0.network
index 640fe04..73d84b1 100644
--- a/meta-ampere/meta-common/recipes-ampere/network/ampere-usbnet/00-bmc-usb0.network
+++ b/meta-ampere/meta-common/recipes-ampere/network/ampere-usbnet/00-bmc-usb0.network
@@ -5,3 +5,4 @@
 [Network]
 LinkLocalAddressing=no
 IPv6AcceptRA=no
+DHCP=no