* Update linker script to use CCM for stack and data.
* Reserve main RAM block for heap.
* Update std library with weak _sbrk symbol.
* Override _sbrk to use entire main RAM block for malloc.
Fixed issue with SCCB delay and optimization
Recompiled all libraries with optimization enabled (-O2)
Some more tweaks to the Sensor's registers
Added function to load CCM data into .ccm section in runtime