iommu/hygon: Add support for Hygon family 18h model 4h IOAPIC

hygon inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8U3GP


CVE: NA

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The SB IOAPIC is on the device 0xb from Hygon family 18h model 4h.

Signed-off-by: Pu Wen <puwen@hygon.cn>