[CRIU] [PATCH 2/2 v3] compel: plugins, std -- Build syscalls and used in CRIU

[Pavel Emelyanov]

That's great work indeed :) But let's nonetheless sanitize this huge guys :)
Otherwise we'll not be able to rebase this patch as it heavily touches things
outside compel subdir.

1. Introduce an empty std plugin with separate patch
2. Make CRIU hook this empty plugin in with separate patch
3. Move */syscall-types.h code into compel uapi with separate patch
4. Move syscalls to this empty std plugin with separate patch
   a) arch/.../Makefile.syscalls are not rename-detected for some reason
   b) I don't get where did x86/syscalls/syscall32.c code move
   c) the same for x86 files with syscall tables (syscall_{32|64}.tbl)

-- Pavel