[MIPS] Kconfig: Move missplaced NR_CPUS default from SMTC to VSMP.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/Kconfig

@@ -1559,6 +1559,7 @@ config MIPS_MT_SMP
 	select CPU_MIPSR2_IRQ_VI
 	select CPU_MIPSR2_SRS
 	select MIPS_MT
+	select NR_CPUS_DEFAULT_2
 	select SMP
 	select SYS_SUPPORTS_SMP
 	help
@@ -1573,7 +1574,6 @@ config MIPS_MT_SMTC
 	select CPU_MIPSR2_IRQ_VI
 	select CPU_MIPSR2_SRS
 	select MIPS_MT
-	select NR_CPUS_DEFAULT_2
 	select NR_CPUS_DEFAULT_8
 	select SMP
 	select SYS_SUPPORTS_SMP