printk: fix potential deadlock in printk()

hulk inclusion
category: bugfix
bugzilla: 34546, https://gitee.com/openeuler/kernel/issues/I4JKT1


CVE: NA

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When one cpu panic, the panic cpu send NMI to other cpus, if one of
the non-panic cpus is in printk() and get stopped in function
console_trylock_spinning() before releasing sem->lock, the panic cpu
may spin waiting sem->lock in function console_trylock_spinning().

Reinit console_sem in zap_lock() to fix this.

Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Reviewed-by: Jian Cheng <cj.chengjian@huawei.com>
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: Cheng Jian <cj.chengjian@huawei.com>
Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>