As the target now resides on SSD storage, increasing the jobs
for module installations might be beneficial.
Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>
Attempt to improve rebuild speed by using ccache and more jobs
than processors.
Kernel build time is set to empty to avoid caching misses due to
changing timestamps.
Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>
