add initial chronic-config.sh for boot-up options (WIP)

Change-Id: I17972b5dc21025bf3da3e392788587d12bfcf793
DRIVERS: SLIMBUS initial overclock Increase root freq from 11 (24.526MHz) to 31 max (27+MHz) which is the largest it will take. Increase clock gear from 7 to 10 (max again) This means SLIMbus will use its maximum potential to give the best audio quality for the hardware. Takes advantage of both hardware and the mods from zeroinfinity, also opening the door for more things that were previously limited by this. Researched and experimented by ZeroInfinity and Poondog
attempt to OC to 3ghtz

Change-Id: Ibc7a73080448b01d4cff26500fd9110776e969d4