arm64: openeuler_defconfig: Enable ARM64_PMEM_LEGACY

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4O31I

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

Enable legacy pmem register feature for arm64.
Signed-off-by: NZhuling <zhuling8@huawei.com>
Reviewed-by: NKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/arm64/configs/openeuler_defconfig

@@ -416,6 +416,8 @@ CONFIG_ARM64_CPU_PARK=y
 CONFIG_FORCE_MAX_ZONEORDER=11
 CONFIG_UNMAP_KERNEL_AT_EL0=y
 CONFIG_RODATA_FULL_DEFAULT_ENABLED=y
+CONFIG_ARM64_PMEM_RESERVE=y
+CONFIG_ARM64_PMEM_LEGACY=m
 # CONFIG_ARM64_SW_TTBR0_PAN is not set
 CONFIG_ARM64_TAGGED_ADDR_ABI=y
 CONFIG_ARM64_ILP32=y
@@ -6034,6 +6036,8 @@ CONFIG_VENDOR_HOOKS=y
 # end of Vendor Hooks
 
 CONFIG_LIBNVDIMM=m
+CONFIG_PMEM_LEGACY=m
+CONFIG_PMEM_LEGACY_DEVICE=y
 CONFIG_BLK_DEV_PMEM=m
 CONFIG_ND_BLK=m
 CONFIG_ND_CLAIM=y