[2/2] settings: add CPU info overlay

this shows
CPU temp (if available)
for every core governor + online + freq

Change-Id: I28c1e48c2e613b33c301b61cead70678ab6a2e9b

Conflicts:

	res/values/custom_strings.xml

Patchset: 2
https://gerrit.omnirom.org/#/c/1280/