linux: deprecate obsolete packet filter interfaces.

sockaddr_ll/AF_PACKET are in place since Linux 2.2

(backport <rust-lang#4267>)
(cherry picked from commit eb78ad0)

Author: devnexen

src/unix/linux_like/android/mod.rs

@@ -1474,6 +1474,7 @@ pub const SOCK_STREAM: c_int = 1;
 pub const SOCK_DGRAM: c_int = 2;
 pub const SOCK_SEQPACKET: c_int = 5;
 pub const SOCK_DCCP: c_int = 6;
+#[deprecated(since = "0.2.70", note = "AF_PACKET must be used instead")]
 pub const SOCK_PACKET: c_int = 10;
 
 pub const IPPROTO_MAX: c_int = 256;

src/unix/linux_like/linux/gnu/mod.rs

@@ -763,6 +763,7 @@ pub const ENOTSUP: c_int = EOPNOTSUPP;
 
 pub const SOCK_SEQPACKET: c_int = 5;
 pub const SOCK_DCCP: c_int = 6;
+#[deprecated(since = "0.2.70", note = "AF_PACKET must be used instead")]
 pub const SOCK_PACKET: c_int = 10;
 
 pub const AF_IB: c_int = 27;

src/unix/linux_like/linux/mod.rs

@@ -186,6 +186,7 @@ s! {
         pub mr_address: [c_uchar; 8],
     }
 
+    #[deprecated(since = "0.2.70", note = "sockaddr_ll type must be used instead")]
     pub struct sockaddr_pkt {
         pub spkt_family: c_ushort,
         pub spkt_device: [c_uchar; 14],

src/unix/linux_like/linux/musl/mod.rs

@@ -716,6 +716,7 @@ pub const MAP_ANONYMOUS: c_int = MAP_ANON;
 pub const SOCK_SEQPACKET: c_int = 5;
 pub const SOCK_DCCP: c_int = 6;
 pub const SOCK_NONBLOCK: c_int = O_NONBLOCK;
+#[deprecated(since = "0.2.70", note = "AF_PACKET must be used instead")]
 pub const SOCK_PACKET: c_int = 10;
 
 pub const SOMAXCONN: c_int = 128;

src/unix/linux_like/linux/uclibc/mod.rs

@@ -382,6 +382,7 @@ pub const RUSAGE_THREAD: c_int = 1;
 pub const SHM_EXEC: c_int = 0o100000;
 pub const SIGPOLL: c_int = SIGIO;
 pub const SOCK_DCCP: c_int = 6;
+#[deprecated(since = "0.2.70", note = "AF_PACKET must be used instead")]
 pub const SOCK_PACKET: c_int = 10;
 pub const TCP_COOKIE_TRANSACTIONS: c_int = 15;
 pub const UDP_GRO: c_int = 104;