arm64/mpam: fix mpam probe error for wrong init order

ascend inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I49RB2
CVE: NA

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

The mpam init procedure failed when probe with ACPI:
[    1.148657 ] ACPI MPAM: No CPU has cache with PPTT reference 0x72
[    1.148658 ] ACPI MPAM: All CPUs must be online to probe mpam.
[    1.148660 ] ACPI MPAM: discovery failed: -19

This is because mpam need to be probed after all cpus be online, the
arm_mpam_driver_init must be called after cacheinfo_sysfs_init, so the
device_initcall should be replaced with device_initcall_sync.
Fixes: b45bdb5a ("arm64/mpam: add device tree support for mpam initialization")
Signed-off-by: NXingang Wang <wangxingang5@huawei.com>
Reviewed-by: NWang ShaoBo <bobo.shaobowang@huawei.com>
Reviewed-by: NCheng Jian <cj.chengjian@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

arch/arm64/kernel/mpam/mpam_device.c

@@ -1876,4 +1876,4 @@ static int __init arm_mpam_driver_init(void)
  * We want to run after cacheinfo_sysfs_init() has caused the cacheinfo
  * structures to be populated. That runs as a device_initcall.
  */
-device_initcall(arm_mpam_driver_init);
+device_initcall_sync(arm_mpam_driver_init);