[Intel-gfx] [PATCH i-g-t] lib: Add missing include for sync()

[Petri Latvala]

Commit 721d8747e3a2 added sync() calls to igt_main and
igt_simple_main, making self-tests fail to build. #including unistd.h
in igt_core.h fixes that.

Fixes: 721d8747e3a2 ("igt: Add a test for reordering execbufs")
CC: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Petri Latvala <petri.latvala at intel.com>
---
 lib/igt_core.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/igt_core.h b/lib/igt_core.h
index dd7fc12..661a634 100644
--- a/lib/igt_core.h
+++ b/lib/igt_core.h
@@ -39,6 +39,7 @@
 #include <sys/types.h>
 #include <stdarg.h>
 #include <getopt.h>
+#include <unistd.h>
 
 #ifndef IGT_LOG_DOMAIN
 #define IGT_LOG_DOMAIN (NULL)
-- 
2.9.3