powerpc/perf_counter: Enable alternate PR/HV bits for POWER7

POWER7 has the same PR/HV bit layout as POWER6, so set the flag.
Signed-off-by: NAnton Blanchard <anton@samba.org>
Acked-by: NPaul Mackerras <paulus@samba.org>
Cc: a.p.zijlstra@chello.nl
Cc: benh@kernel.crashing.org
LKML-Reference: <20090701030701.GI3563@kryten>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/powerpc/kernel/power7-pmu.c

@@ -358,6 +358,7 @@ static struct power_pmu power7_pmu = {
 	.get_constraint		= power7_get_constraint,
 	.get_alternatives	= power7_get_alternatives,
 	.disable_pmc		= power7_disable_pmc,
+	.flags			= PPMU_ALT_SIPR,
 	.n_generic		= ARRAY_SIZE(power7_generic_events),
 	.generic_events		= power7_generic_events,
 	.cache_events		= &power7_cache_events,