arm64: Fix wrong logic in gic_arch_restore_irqs()

hulk inclusion
category: bugfix
bugzilla: 186819 https://gitee.com/openeuler/kernel/issues/I58L00



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The gic_arch_restore_irqs() depends on commit e7e6a881 ("arm64:
irqflags: fix incomplete save & restore"). While it is reverted in commit
2e680920 ("Revert "arm64: irqflags: fix incomplete save & restore""),
we should update the logic here too.

Currently the upper 32 bits of 'flags' is always zero, change to use
'GIC_PRIO_PSR_I_SET' to indicate the interrupt enabling status.

Fixes: abde6b94 ("stop_machine: mask pseudo nmi before running the callback")
Signed-off-by: Wei Li <liwei391@huawei.com>
Reviewed-by: Cheng Jian <cj.chengjian@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>