syscall: regen zsyscall_{aix_ppc64,solaris_amd64}.go

syscall: regen zsyscall_{aix_ppc64,solaris_amd64}.go

This renames libc_Setrlimit to libc_setrlimit after CL 476097.

Change-Id: I217043a5086cb40d050373eaee3f897173dd678b
Reviewed-on: https://go-review.googlesource.com/c/go/+/538936
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>