powerpc/perf: Add blacklisted events for Power9 DD2.1

These events either do not count, or do not count correctly, so to
prevent user confusion block counting them at all.

Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
[mpe: Change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2 files changed