split personality in submodules instead of using #[cfg] for fixing the lint error

Author: ndusart

src/unix/notbsd/android/mod.rs

@@ -808,6 +808,8 @@ extern {
 
     pub fn posix_fallocate(fd: ::c_int, offset: ::off_t,
                            len: ::off_t) -> ::c_int;
+
+    pub fn personality(persona: ::c_uint) -> ::c_int;
 }
 
 cfg_if! {

src/unix/notbsd/linux/mod.rs

@@ -1116,6 +1116,7 @@ extern {
     pub fn getdomainname(name: *mut ::c_char, len: ::size_t) -> ::c_int;
     pub fn setdomainname(name: *const ::c_char, len: ::size_t) -> ::c_int;
     pub fn vhangup() -> ::c_int;
+    pub fn personality(persona: ::c_ulong) -> ::c_int;
 }
 
 extern {

src/unix/notbsd/mod.rs

@@ -1000,10 +1000,6 @@ extern {
                      suid: *mut ::uid_t) -> ::c_int;
     pub fn getresgid(rgid: *mut ::gid_t, egid: *mut ::gid_t,
                      sgid: *mut ::gid_t) -> ::c_int;
-    #[cfg(target_os="android")]
-    pub fn personality(persona: ::c_uint) -> ::c_int;
-    #[cfg(not(target_os="android"))]
-    pub fn personality(persona: ::c_ulong) -> ::c_int;
     pub fn swapon(path: *const ::c_char, swapflags: ::c_int) -> ::c_int;
     pub fn swapoff(puath: *const ::c_char) -> ::c_int;
     pub fn acct(filename: *const ::c_char) -> ::c_int;