Move common linux defn's up

src/unix/notbsd/linux/mips.rs

 pub type c_char = i8;
-pub type c_schar = i8;
-pub type c_uchar = u8;
-pub type c_short = i16;
-pub type c_ushort = u16;
-pub type c_int = i32;
-pub type c_uint = u32;
 pub type c_long = i32;
 pub type c_ulong = u32;
-pub type c_float = f32;
-pub type c_double = f64;
 pub type size_t = u32;
 pub type ptrdiff_t = i32;
 pub type clock_t = i32;
 pub type time_t = i32;
 pub type suseconds_t = i32;
 pub type wchar_t = i32;
-pub type c_longlong = i64;
-pub type c_ulonglong = u64;
 pub type intptr_t = i32;
 pub type uintptr_t = u32;
-pub type intmax_t = i64;
-pub type uintmax_t = u64;
 pub type off_t = i32;
 pub type ino_t = u32;
-pub type pid_t = i32;
-pub type uid_t = u32;
-pub type gid_t = u32;
-pub type useconds_t = u32;
 pub type ssize_t = i32;
 pub type blkcnt_t = i32;
 pub type blksize_t = i32;
-pub type dev_t = u64;
 pub type mode_t = u32;
 pub type nlink_t = u32;
 

src/unix/notbsd/linux/mod.rs

 //! Linux-specific definitions for linux-like values
 
+pub type c_schar = i8;
+pub type c_uchar = u8;
+pub type c_short = i16;
+pub type c_ushort = u16;
+pub type c_int = i32;
+pub type c_uint = u32;
+pub type c_float = f32;
+pub type c_double = f64;
+pub type c_longlong = i64;
+pub type c_ulonglong = u64;
+pub type intmax_t = i64;
+pub type uintmax_t = u64;
+
+pub type dev_t = u64;
+pub type gid_t = u32;
+pub type pid_t = i32;
+pub type uid_t = u32;
+pub type useconds_t = u32;
+
 s! {
     pub struct glob_t {
         pub gl_pathc: size_t,

src/unix/notbsd/linux/notmips/mod.rs

-pub type c_schar = i8;
-pub type c_uchar = u8;
-pub type c_short = i16;
-pub type c_ushort = u16;
-pub type c_int = i32;
-pub type c_uint = u32;
-pub type c_float = f32;
-pub type c_double = f64;
-pub type c_longlong = i64;
-pub type c_ulonglong = u64;
-pub type intmax_t = i64;
-pub type uintmax_t = u64;
-pub type dev_t = u64;
-pub type gid_t = u32;
-pub type pid_t = i32;
-pub type uid_t = u32;
-pub type useconds_t = u32;
 
 pub const RLIMIT_RSS: ::c_int = 5;
 pub const RLIMIT_NOFILE: ::c_int = 7;