KVM: cpuid: rename do_cpuid_1_ent

mainline inclusion
from mainline-v5.3-rc1
commit 50a9e1a4
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I3YAEG


CVE: NA

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

do_cpuid_1_ent does not do the entire processing for a CPUID entry, it
only retrieves the host's values.  Rename it to match reality.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jingyi Wang <wangjingyi11@huawei.com>
Reviewed-by: Keqian Zhu <zhukeqian1@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>