PR 841/rtems
* itron/inline/rtems/itron/semaphore.inl, itron/src/twai_sem.c,
posix/include/rtems/posix/semaphore.h,
posix/inline/rtems/posix/semaphore.inl,
posix/src/semaphorewaitsupp.c, posix/src/semtimedwait.c,
posix/src/semwait.c, rtems/src/semobtain.c,
rtems/src/semtranslatereturncode.c,
score/include/rtems/score/coresem.h, score/src/coresemseize.c: Make
sem_timedwait more conformant to Open Group specification.
0c2ec7f52c