parisc: Fix mask used to select futex spinlock

stable inclusion
from stable-v5.10.89
commit 0ffb9f83e4f6e6a8b68f926173a8d0646b57bedf
bugzilla: 186140 https://gitee.com/openeuler/kernel/issues/I4S8HA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0ffb9f83e4f6e6a8b68f926173a8d0646b57bedf



--------------------------------

commit d3a5a68c upstream.

The address bits used to select the futex spinlock need to match those used in
the LWS code in syscall.S. The mask 0x3f8 only selects 7 bits.  It should
select 8 bits.

This change fixes the glibc nptl/tst-cond24 and nptl/tst-cond25 tests.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Fixes: 53a42b63 ("parisc: Switch to more fine grained lws locks")
Cc: stable@vger.kernel.org # 5.10+
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>