Enabled the boot_time test on ARM SoCs, set __start_time_stamp on ARM
since we don't have a free running counter similar to TSC on x86.
Also moved to printing the values out as %u to increase the range of
values.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This will prepare test cases and samples with metadata and information
that will be consumed by the sanitycheck script which will be changed to
parse YAML files instead of ini.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>