perf jevents: Support FCMask and PortMask

Skylake server uncore IIO events need new FCMask/PortMask fields. Support
those in the json parser and pass it through as a filter.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170816220201.19182-2-andi@firstfloor.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/pmu-events/jevents.c

@@ -137,6 +137,8 @@ static struct field {
 	{ "AnyThread",	"any=" },
 	{ "EdgeDetect",	"edge=" },
 	{ "SampleAfterValue", "period=" },
+	{ "FCMask",	"fc_mask=" },
+	{ "PortMask",	"ch_mask=" },
 	{ NULL, NULL }
 };