go.sys/windows: add SIO_UDP_CONNRESET const
It was part of recently submitted CL 149510043.
LGTM=r
R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/155320044
diff --git a/windows/ztypes_windows.go b/windows/ztypes_windows.go
index 4cd6361..9787253 100644
--- a/windows/ztypes_windows.go
+++ b/windows/ztypes_windows.go
@@ -552,6 +552,7 @@
IOC_WS2 = 0x08000000
SIO_GET_EXTENSION_FUNCTION_POINTER = IOC_INOUT | IOC_WS2 | 6
SIO_KEEPALIVE_VALS = IOC_IN | IOC_VENDOR | 4
+ SIO_UDP_CONNRESET = IOC_IN | IOC_VENDOR | 12
// cf. http://support.microsoft.com/default.aspx?scid=kb;en-us;257460