KFD added all direct IO links to sysfs, so this patch removes all direct
links related code and modify the indirect links function to reflect the
change.
Change-Id: Iaec7b5f6c59f9034f8f960ca1fe1145d51dab367
Signed-off-by: Amber Lin <Amber.Lin@amd.com>
[ROCm/ROCR-Runtime commit: c119653add]