Fix transport/raw copybara export

- include packet_list.go
- exclude state.go (by renaming to include an underscore)

Also rename raw.go to endpoint.go for consistency.

PiperOrigin-RevId: 246547912
Change-Id: I19c8331c794ba683a940cc96a8be6497b53ff24d

pkg/tcpip/transport/raw/BUILD

@@ -18,9 +18,9 @@ go_template_instance(
 go_library(
     name = "raw",
     srcs = [
+        "endpoint.go",
+        "endpoint_state.go",
         "packet_list.go",
-        "raw.go",
-        "state.go",
     ],
     importpath = "gvisor.googlesource.com/gvisor/pkg/tcpip/transport/raw",
     imports = ["gvisor.googlesource.com/gvisor/pkg/tcpip/buffer"],