Code changes related to the following:
* Added 'rsmi_dev_revision_get()' related code
* Test code
* Functional tests
Change-Id: I8c2097c65384a028c8c8437b717d05d52fe45250
Signed-off-by: Oliveira, Daniel <daniel.oliveira@amd.com>
[ROCm/amdsmi commit: 573620f586]