cpu/aarch64: enable host-model cpu for AArch64 architecture

The 'host-model' cpu is support by kunpeng-v virtualization
suit, skip hypervisor host-model externsion checking on AArch64
architecture.
Signed-off-by: NXu Yandong <xuyandong2@huawei.com>

src/qemu/qemu_command.c

@@ -6582,7 +6582,7 @@ qemuBuildCpuModelArgStr(virQEMUDriverPtr driver,
         break;
     }
 
-    if ((ARCH_IS_S390(def->os.arch) || ARCH_IS_ARM(def->os.arch)) &&
+    if (ARCH_IS_S390(def->os.arch) &&
         cpu->features &&
         !virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION)) {
         virReportError(VIR_ERR_INTERNAL_ERROR,

tests/qemuxml2argvtest.c

@@ -2736,8 +2736,6 @@ mymain(void)
     DO_TEST("aarch64-noacpi-nouefi", NONE);
     DO_TEST_PARSE_ERROR("aarch64-acpi-nouefi", NONE);
 
-    /* QEMU 4.0.0 didn't have support for aarch64 CPU features */
-    DO_TEST_CAPS_ARCH_VER_FAILURE("aarch64-features-sve", "aarch64", "4.0.0");
     /* aarch64 doesn't support the same CPU features as x86 */
     DO_TEST_CAPS_ARCH_LATEST_FAILURE("aarch64-features-wrong", "aarch64");
     /* Can't enable vector lengths when SVE is overall disabled */