We want both klimtwifi and klimtlte to be able to depend on
firmware-samsung-klimt, for both their downstream and mainline kernel
variants.
Previously we used install_if like:
install_if="device-samsung-klimtlte-kernel-mainline" which will only
work for klimtlte and not klimtwifi. Instead we add two nonfree
subpackages to the device packages that install_if's depending on
kernel choice.
Add pmb:cross-native/!tracedeps to applicable firmware packages and
secure both with a test.
This sets the pmb:cross-native and !tracedeps options on all firmware-*
packages that are compatible with the native compilation method. A unit
test ensures the presence of both options while maintaining a list of
exempted packages.
Fixes: #718
[ci:ignore-count] [ci:skip-vercheck] [ci:skip-build]
