Auto merge of #2082 - landfillbaby:patch-1, r=Amanieu
Auto merge of #2082 - landfillbaby:patch-1, r=Amanieu

use GNU/Linux siginfo_t on Android

Bionic uses an unchanged siginfo.h from the upstream linux so why not? :)
I literally just copied everything with siginfo_t from unix/linux_like/linux/gnu/mod.rs to unix/linux_like/android/mod.rs

rust-lang/libc,rust-lang/libc,rust-lang/libc