arm64: Kconfig: remove SMP dependence for NUMA

The arm64 forces CONFIG_SMP=y with commit 4b3dc9679c, no need to
add SMP dependence for NUMA.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

arch/arm64/Kconfig

@@ -579,7 +579,6 @@ config HOTPLUG_CPU
 # Common NUMA Features
 config NUMA
 	bool "Numa Memory Allocation and Scheduler Support"
-	depends on SMP
 	select ACPI_NUMA if ACPI
 	select OF_NUMA
 	help