update ptp_sys_offset_extended to latest version

it changed recently torvalds/linux@c259aca#diff-721f436093b6e07475c0784886e2092c2d0bc269397e0efd279fdf943ea55f27R175

Author: folkertdev

libc-test/build.rs

@@ -3704,7 +3704,9 @@ fn test_linux(target: &str) {
         if musl && ty == "seccomp_notif_sizes" {
             return true;
         }
-        if musl && ty == "ptp_sys_offset_extended" {
+
+        // FIXME: CI has old headers
+        if ty == "ptp_sys_offset_extended" {
             return true;
         }
 

src/unix/linux_like/linux/mod.rs

@@ -17,6 +17,7 @@ pub type pthread_key_t = ::c_uint;
 pub type pthread_once_t = ::c_int;
 pub type pthread_spinlock_t = ::c_int;
 pub type __kernel_fsid_t = __c_anonymous__kernel_fsid_t;
+pub type __kernel_clockid_t = ::c_int;
 
 pub type __u8 = ::c_uchar;
 pub type __u16 = ::c_ushort;
@@ -839,7 +840,8 @@ s! {
 
     pub struct ptp_sys_offset_extended {
         pub n_samples: ::c_uint,
-        pub rsv: [::c_uint; 3],
+        pub clockid: __kernel_clockid_t,
+        pub rsv: [::c_uint; 2],
         pub ts: [[ptp_clock_time; 3]; PTP_MAX_SAMPLES as usize],
     }