message: psys_net: change TvUsecType to long on NetBSD
  This fixes the build on NetBSD
diff: @@ -28,9 +28,9 @@ pub mod public {
  pub type InAddr = libc::in_addr;
  pub type In6Addr = libc::in6_addr;
  - #[cfg(not(any(target_os = "macos", target_os = "ios")))]
  + #[cfg(not(any(target_os = "macos", target_os = "ios", target_os = "netbsd")))]
  pub type TvUsecType = libc::c_long;
  - #[cfg(any(target_os = "macos", target_os = "ios"))]
  + #[cfg(any(target_os = "macos", target_os = "ios", target_os = "netbsd"))]
  pub type TvUsecType = libc::c_int;
  pub const AF_INET: libc::c_int = libc::AF_INET;
  