x86/cpu/hygon: Fix __max_die_per_package for Hygon family 18h model 4h

hygon inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8U3EG


CVE: NA

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From model 4h, Hygon processors use CPUID leaf 0xB to derive the
core ID, socket ID and APIC ID with the SMT and CORE level types.
But still set __max_die_per_package to nodes_per_socket because
of lacking the DIE level type.

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