sysdata: rename cpu_usage to cpu_used_percent
sysdata: rename cpu_usage to cpu_used_percent

tobes/py3status,Andrwe/py3status,ultrabug/py3status,valdur55/py3status,ultrabug/py3status,guiniol/py3status,tobes/py3status,ultrabug/py3status,guiniol/py3status,Andrwe/py3status,valdur55/py3status,valdur55/py3status