MIPS: Move CPU Hotplug config option into submenu

The KConfig option HOTPLUG_CPU should appear in the "Kernel Type"
submenu. Relocate it to where SMP support is configured.
Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/13751/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/Kconfig

@@ -1110,16 +1110,6 @@ config NEED_DMA_MAP_STATE
 config SYS_HAS_EARLY_PRINTK
 	bool
 
-config HOTPLUG_CPU
-	bool "Support for hot-pluggable CPUs"
-	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
-	help
-	  Say Y here to allow turning CPUs off and on. CPUs can be
-	  controlled through /sys/devices/system/cpu.
-	  (Note: power management support will enable this option
-	    automatically on SMP systems. )
-	  Say N if you want to disable CPU hotplug.
-
 config SYS_SUPPORTS_HOTPLUG_CPU
 	bool
 
@@ -2633,6 +2623,16 @@ config SMP
 
 	  If you don't know what to do here, say N.
 
+config HOTPLUG_CPU
+	bool "Support for hot-pluggable CPUs"
+	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
+	help
+	  Say Y here to allow turning CPUs off and on. CPUs can be
+	  controlled through /sys/devices/system/cpu.
+	  (Note: power management support will enable this option
+	    automatically on SMP systems. )
+	  Say N if you want to disable CPU hotplug.
+
 config SMP_UP
 	bool