s390/pai: fix raw data collection for PMU pai_ext

Commit 838d9bb6 ("perf: Use sample_flags for raw_data")
changed the way the raw data of an event is collected.
Adjust the PMU pai_ext to the new scheme.

Fixes: 838d9bb6 ("perf: Use sample_flags for raw_data")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

arch/s390/kernel/perf_pai_ext.c

@@ -459,6 +459,7 @@ static int paiext_push_sample(void)
 		raw.frag.data = cpump->save;
 		raw.size = raw.frag.size;
 		data.raw = &raw;
+		data.sample_flags |= PERF_SAMPLE_RAW;
 	}
 
 	overflow = perf_event_overflow(event, &data, &regs);