intel: Update RSU driver return code

Modify RSU driver error code for backward-compatibility with
Linux RSU driver

Signed-off-by: Abdul Halim, Muhammad Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Change-Id: Ib9e38d4017efe35d3aceeee27dce451fbd429fb5
2 files changed