pigz: Add dependency on zlib-native for pigz-native

JIRA: SB-1435

When pigz-native and zlib-native are coming from sstate the setscenes might
not necessarily run in the expected order. The problem happens when setscene
for pigz-native runs before setscene for zlib-native. To fix the issue
do_populate_sysroot_setscene[depends] should be properly set for pigz-native.

Signed-off-by: Mikhail Durnev <mikhail_durnev@mentor.com>
Merge pull request #212 from mdurnev/mdurnev/pigz-zlib-race

pigz: Add dependency on zlib-native for pigz-native