arm64: openeuler_defconfig: increase CONFIG_NR_CPUS value to 4096

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4J96Y
CVE: NA

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Set CONFIG_NR_CPUS of openeuler_defconfig to 4096 to meet
scalability requirement for arm64.
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/arm64/configs/openeuler_defconfig

@@ -380,7 +380,7 @@ CONFIG_ARM64_PA_BITS=52
 CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_SCHED_MC=y
 CONFIG_SCHED_SMT=y
-CONFIG_NR_CPUS=1024
+CONFIG_NR_CPUS=4096
 CONFIG_HOTPLUG_CPU=y
 # CONFIG_ARM64_BOOTPARAM_HOTPLUG_CPU0 is not set
 CONFIG_NUMA=y