Update Nixpkgs to use the updateAutotoolsGnuConfigScript hook everywhere
for Genode target platforms. Tweak Coreutils and Bash to compile, make
some tests.
- Remove manifests from Dhall configurations and mix all
test inputs to generate test ROM maps.
- All loader and timer drivers are name ld.lib.so and timer_drv.
- Replace packages of multiple Genode Labs targets with functions
to build individual targets. These packages are not explicitly
specified unless they require inputs from the source ports or
extra nativeBuildInputs.
- Add support for building from Genode world repository.