[PATCH] selftests: vDSO: fix compile error for vdso_test_getrandom

[Yu Liao <liaoyu15@xxxxxxxxxx>]

When building selftests/vDSO:
$ make -C tools/testing/selftests TARGETS=vDSO
I hit the following compilation error:

  vdso_test_getrandom.c:260:17: error: 'CLONE_NEWTIME' undeclared
  (first use in this function); did you mean 'CLONE_NEWIPC'?
    260 |  assert(unshare(CLONE_NEWTIME) == 0);
        |                 ^~~~~~~~~~~~~

CLONE_NEWTIME is defined in linux/sched.h, so fix this by including
<linux/sched.h>.

Fixes: 2aec90036dcd ("selftests: vDSO: ensure vgetrandom works in a time namespace")
Signed-off-by: Yu Liao <liaoyu15@xxxxxxxxxx>
---
 tools/testing/selftests/vDSO/vdso_test_getrandom.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/vDSO/vdso_test_getrandom.c b/tools/testing/selftests/vDSO/vdso_test_getrandom.c
index 72a1d9b43a84..84f2bbb2d5e0 100644
--- a/tools/testing/selftests/vDSO/vdso_test_getrandom.c
+++ b/tools/testing/selftests/vDSO/vdso_test_getrandom.c
@@ -19,6 +19,7 @@
 #include <sys/ptrace.h>
 #include <sys/wait.h>
 #include <sys/types.h>
+#include <linux/sched.h>
 #include <linux/random.h>
 #include <linux/compiler.h>
 #include <linux/ptrace.h>
-- 
2.33.0