* helm: replace /usr/share reference with $out/share
with the stock path helm will always determine that it is not installed
properly and thus refuse to save/load settings, preset and builtin presets.
* helm: remove buildPhase
the default is adequate since using `make install` during installPhase will
build the remaining targets anyway.
* helm: enable parallel builds
* helm: fix package lints
pennae
9ad5029b71