Change-Id: Iff966f2214e2d8bb6b72dd0a119085709f2d4a9c
Change-Id: I478704fbf30dbf6d3382bcbfb11e75b512c032a1
Clock configuration will be needed by other/future subsystems such as i2c. Extract the functionality from libgpio and put it into it's own library. Change-Id: I6f6de0b3fb4d305ddfeac74123b78c983d1318dd