Since 3f823e87cc (Call exit directly in clone (BZ #21512)) SH clone
implementation fails to set the exit code resulting in the failures:
FAIL: nptl/tst-align-clone
FAIL: nptl/tst-getpid1
This patch fixes the both testcases.
[BZ #22605]
* sysdeps/unix/sysv/linux/sh/clone.S (__clone): Fix exit return
code.
Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>