frameworks/base: Day and week on data usage (1/2)

Adds the ability to set day and week on when the data usage graph resets, instead of just month.

Change-Id: I61b0aa3bdea015793928e4af2b8d8a79147a123e
Merge "frameworks/base: Day and week on data usage (1/2)" into cm-11.0
Merge pull request #54 from CyanogenMod/cm-11.0

sync fork