buildroot

musl: security bump to version 1.1.16

Fixes:
CVE-2016-8859 - fixes a serious under-allocation bug in regexec due to
integer overflow.

Drop upstream patch.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 63a7277107c32349d1aadd06e9c739503f33079e)