On newer kernels, it seems the group was changed from "video" to
"render". The check for video group misled me for quite some time, so
relax this check. Rather than specifically checking for video group
ownership, first see if /dev/kfd can be open as read-write. Then
diagnose whether the user belongs to the group that owns it, rather
than hardcoding the video group.
Change-Id: I9e65427363e9a5cdba802e09cee2f40fb80520ed
[ROCm/rocminfo commit: cd4b7cea85]
Matt Arsenault
de4494c3ed