android: process_vm*: fix return type

Author: rupansh

Diff for: src/unix/linux_like/android/mod.rs

@@ -2394,15 +2394,15 @@ extern "C" {
         remote_iov: *const ::iovec,
         riovcnt: ::c_ulong,
         flags: ::c_ulong,
-    ) -> isize;
+    ) -> ::ssize_t;
     pub fn process_vm_writev(
         pid: ::pid_t,
         local_iov: *const ::iovec,
         liovcnt: ::c_ulong,
         remote_iov: *const ::iovec,
         riovcnt: ::c_ulong,
         flags: ::c_ulong,
-    ) -> isize;
+    ) -> ::ssize_t;
     pub fn ptrace(request: ::c_int, ...) -> ::c_long;
     pub fn getpriority(which: ::c_int, who: ::id_t) -> ::c_int;
     pub fn setpriority(which: ::c_int, who: ::id_t, prio: ::c_int) -> ::c_int;