We need to check result of SYSDEP_GETTIME_CPU

[H.J. Lu]

We need to check result of SYSDEP_GETTIME_CPU since there are

# if __ASSUME_POSIX_CPU_TIMERS > 0

#  define SYSDEP_GETTIME_CPU SYSCALL_GETTIME

Otherwise, many rt tests will fail when glibc is configured with

--enable-kernel=2.6.22


H.J.