Implement ethtool get/set value operations

Bug: 156784343
Test: manual
Change-Id: I33b23bf9c6639cab6006c756d4ddbe561b9441ba
diff --git a/automotive/can/1.0/default/libnetdevice/Android.bp b/automotive/can/1.0/default/libnetdevice/Android.bp
index c5fd311..928ad13 100644
--- a/automotive/can/1.0/default/libnetdevice/Android.bp
+++ b/automotive/can/1.0/default/libnetdevice/Android.bp
@@ -35,6 +35,8 @@
         "NetlinkSocket.cpp",
         "can.cpp",
         "common.cpp",
+        "ethtool.cpp",
+        "ifreqs.cpp",
         "libnetdevice.cpp",
         "printer.cpp",
         "vlan.cpp",