perf c2c report: Add 'tid' sort key

It is to be displayed in the single cacheline output:

  tid

It's a wrapper for global sort_thread sort entry with c2c specific
header.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-fr0socae5skzvz5qbkl85prn@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-c2c.c

@@ -1098,6 +1098,12 @@ static struct c2c_dimension dim_pid = {
 	.width		= 7,
 };
 
+static struct c2c_dimension dim_tid = {
+	.header		= HEADER_LOW("Tid"),
+	.name		= "tid",
+	.se		= &sort_thread,
+};
+
 static struct c2c_dimension *dimensions[] = {
 	&dim_dcacheline,
 	&dim_offset,
@@ -1128,6 +1134,7 @@ static struct c2c_dimension *dimensions[] = {
 	&dim_dram_lcl,
 	&dim_dram_rmt,
 	&dim_pid,
+	&dim_tid,
 	NULL,
 };