x86/cpufeatures: Hide AMD-specific speculation flags

Hide the AMD_{IBRS,IBPB,STIBP} flag from /proc/cpuinfo.  This was done
upstream as part of commit e7c587da12 "x86/speculation: Use
synthetic bits for IBRS/IBPB/STIBP".  I already backported that commit
but accidentally dropped this part.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
This commit is contained in:
Ben Hutchings 2018-11-07 17:09:42 +00:00
commit 8288c58eca