perf tools: Replace STR() calls with __stringify()

Both do the same thing, the later is the one we get from
linux/stringify.h, i.e. we now use the same function name/practice as
the kernel sources.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-w2sxa5o4bfx7fjrd5mu4zmke@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/jitdump.c

@@ -9,6 +9,7 @@
 #include <byteswap.h>
 #include <sys/stat.h>
 #include <sys/mman.h>
+#include <linux/stringify.h>
 
 #include "util.h"
 #include "event.h"
@@ -181,7 +182,7 @@ jit_open(struct jit_buf_desc *jd, const char *name)
 			jd->use_arch_timestamp);
 
 	if (header.version > JITHEADER_VERSION) {
-		pr_err("wrong jitdump version %u, expected " STR(JITHEADER_VERSION),
+		pr_err("wrong jitdump version %u, expected " __stringify(JITHEADER_VERSION),
 			header.version);
 		goto error;
 	}