Add missing dependency on PmLogLib

Signed-off-by: Simon Busch <morphis@gravedo.de>
Extend settings class to load machine specific configuration files based on /proc/cpuinfo

In our ongoing work to build every inside webOS not specific for a single machine we need
a way to determine at runtime on which type of machine we're running on.

To install a machine specific configuration file it just has to be placed inside /etc/palm
as before but suffixed with the machine name:

/etc/palm/luna-<machine-name>.conf

Signed-off-by: Simon Busch <morphis@gravedo.de>