Also nail down a previously floating dependancy on zlib, which is required for ptest
(From OE-Core rev: e76181535fce8bd4bb63f55106de4d074cae4e06)
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>