No functional runtime change, but changes to rtos partitioning and the
layout of headers .
This patch creates RTOS specifc header paths and updates spinlock.h
and kernel.h to show the new usage. Other headers will incrementally follow.
It reuses the current zephyr topleve directory and creates a new
toplevel xtos directory for xtos specific files.
Due to the mixing of RTOS, driver and library headers at the top level include
directory it was necessary to create rtos specific header directories i.e.
src/include/rtos-xtos
src/include/rtos-zephyr
These RTOS include directories will eventually contain RTOS specific headers
whilst common logic and structures will be placed in non RTOS directories.
This will also mean
"#include <sof/spinlock.h>"
will become
"#include <rtos/spinlock.h>"
and will allow easier visualisation of where and why RTOS headers are being used.
This will help to eliminate cross usage of headers between RTOSes.
Subsequqnt patches will move more headers and rtos specific wrppaer
source files into rtos specific locations.
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>