powerpc/perf: Cleanup cache_sel bits comment

Update the raw event code comment in power9-pmu.c with respect to
"cache" bits, since power9 MMCRC does not support these.

Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Madhavan Srinivasan 2017-10-09 19:42:39 +05:30 • committed by Michael Ellerman
commit 8c31459d61