Enable copy_file_range on FreeBSD

PR #2479 did this, but only in the freebsd13 and freebsd14 modules,
which was incorrect.  Those modules should only be used for functions
that change across FreeBSD versions, and therefore need different ELF
symbol versions.  Functions that were newly added since FreeBSD 11 can
still go in the base freebsd module.  It will cause no problems for them
to be there, and users will see an error at link time if they try to
use such a function in an environment that is too old to support it.

libc-test/semver/freebsd.txt

@@ -1517,6 +1517,7 @@ clearerr
 clock_getcpuclockid
 clock_getres
 clock_settime
+copy_file_range
 cmsgcred
 cmsghdr
 cpuset

src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs

@@ -527,15 +527,6 @@ extern "C" {
         policy: ::c_int,
     ) -> ::c_int;
 
-    pub fn copy_file_range(
-        infd: ::c_int,
-        inoffp: *mut ::off_t,
-        outfd: ::c_int,
-        outoffp: *mut ::off_t,
-        len: ::size_t,
-        flags: ::c_uint,
-    ) -> ::ssize_t;
-
     pub fn dirname(path: *mut ::c_char) -> *mut ::c_char;
     pub fn basename(path: *mut ::c_char) -> *mut ::c_char;
 }

src/unix/bsd/freebsdlike/freebsd/freebsd14/mod.rs

@@ -527,15 +527,6 @@ extern "C" {
         policy: ::c_int,
     ) -> ::c_int;
 
-    pub fn copy_file_range(
-        infd: ::c_int,
-        inoffp: *mut ::off_t,
-        outfd: ::c_int,
-        outoffp: *mut ::off_t,
-        len: ::size_t,
-        flags: ::c_uint,
-    ) -> ::ssize_t;
-
     pub fn dirname(path: *mut ::c_char) -> *mut ::c_char;
     pub fn basename(path: *mut ::c_char) -> *mut ::c_char;
 }

src/unix/bsd/freebsdlike/freebsd/mod.rs

@@ -3954,6 +3954,15 @@ extern "C" {
     pub fn aio_write(aiocbp: *mut aiocb) -> ::c_int;
     pub fn aio_writev(aiocbp: *mut ::aiocb) -> ::c_int;
 
+    pub fn copy_file_range(
+        infd: ::c_int,
+        inoffp: *mut ::off_t,
+        outfd: ::c_int,
+        outoffp: *mut ::off_t,
+        len: ::size_t,
+        flags: ::c_uint,
+    ) -> ::ssize_t;
+
     pub fn devname_r(
         dev: ::dev_t,
         mode: ::mode_t,