Make /sys output from acpi_pad more readable.

Before the fix:
# cat idlecpus idlepct rrtime
00000000510

After the fix:
# cat idlecpus idlepct rrtime
00000000
5
10
Signed-off-by: NNaga Chumbalkar <nagananda.chumbalkar@hp.com>
Signed-off-by: NLen Brown <len.brown@intel.com>