ASACORE-1285 C/C++ Documentation Cleanup

This cleans up all the documentation warnings generated by doxygen
Note the version of doxygen used was 1.8.6 a different version of
doxygen may generate different warnings.

Change-Id: Ieba32962b186818d147f03d9476c54fa6d84ea75
Signed-off-by: George Nash <georgen@qce.qualcomm.com>
Merge "ASACORE-1285 C/C++ Documentation Cleanup" into RB14.12