Introduce xmls for primary/secondary text colors

I7c08d8f533f0dd5318c614e3df14bb39207485e9 introduced
primary/secondary text color with activated state for each
ContactListItemView, which made it impossible to set
those colors differently between People and Phone UIs.

This change instead uses those xml for app-wide use, with
which we can avoid the issue above. Also the other screens
with activated state possibly obtain the benefit.

TESTED:
- People/Phone on phone
- People on tablet (activated state should be kept, as
  I7c08d8f533f0dd5318c614e3df14bb39207485e9 did)
- Picker screens show correct colors

Bug: 5249631
Change-Id: I621b2f0fb1e67c31c289c35ee756940725272885