newbs-swdl: tweak dependencies to avoid errors about gzip-native providers
newbs-swdl: tweak dependencies to avoid errors about gzip-native providers

Yocto zeus has pigz-native as the preferred provider for gzip-native,
but that confuses how RDEPENDS are handled for native recipes. Continue
using RDEPENDS_${PN} for target runtime dependencies, but use DEPENDS
for native dependencies.

aswild/meta-newbs,aswild/meta-newbs,aswild/meta-newbs