* pthread_rwlock_rdlock.c (__pthread_rwlock_rdlock): Add LLL_SHARED

* pthread_rwlock_rdlock.c (__pthread_rwlock_rdlock): Add LLL_SHARED

	parameter to lll_futex_wait call.
	* pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock): Likewise.

	* sysdeps/unix/sysv/linux/powerpc/pthread_once.c (__pthread_once):
	Replace lll_futex_wait with lll_private_futex_wait.
	* sysdeps/unix/sysv/linux/powerpc/sem_post.c (__new_sem_post):
	Add LLL_SHARED parameter to lll_futex_wake().

	* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Define LLL_PRIVATE
	LLL_SHARED, lll_private_futex_wait, lll_private_futex_timed_wait and
	lll_private_futex_wake.
	(lll_futex_wait): Add private parameter. Adjust FUTEX_PRIVATE_FLAG
	bit from private parm before syscall.
	(lll_futex_timed_wait): Likewise.
	(lll_futex_wake): Likewise.
	(lll_futex_wake_unlock): Likewise.
	(lll_mutex_unlock): Add LLL_SHARED parm to lll_futex_wake call.
	(lll_robust_mutex_unlock): Likewise.
	(lll_mutex_unlock_force): Likewise.
	(lll_wait_tid): Add LLL_SHARED parm to lll_futex_wait call.