openeuler_defconfig: Enable CONFIG_ARM64_EPAN for ARM64

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4QUF2

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

Enable CONFIG_ARM64_EPAN for ARM64 architecture by default.
Signed-off-by: NXiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/arm64/configs/openeuler_defconfig

@@ -466,6 +466,12 @@ CONFIG_ARM64_E0PD=y
 CONFIG_ARCH_RANDOM=y
 # end of ARMv8.5 architectural features
 
+#
+# ARMv8.7 architectural features
+#
+CONFIG_ARM64_EPAN=y
+# end of ARMv8.7 architectural features
+
 CONFIG_ARM64_SVE=y
 CONFIG_ARM64_MODULE_PLTS=y
 CONFIG_ARM64_PSEUDO_NMI=y