serrano: Enable partial smart cover support

 * Leave coordinates empty for now as i don't have a
   smart cover, so unable to figure out the exact values.

   Example config: http://review.cyanogenmod.org/#/c/70776/

Change-Id: I5a8f85c92575fd0d7fb62fd59d0cf742de50c22d
Merge branch 'cm-11.0' into kk_mkt