[PATCH] ARM: uniphier: only select TWD for SMP

[Arnd Bergmann]

This makes uniphier behave like all the other platforms that
support TWD, and only select this driver when SMP is enabled.
Without this, we get a compile error on UP builds:

arch/arm/kernel/smp_twd.c: In function 'twd_local_timer_of_register':
arch/arm/kernel/smp_twd.c:391:20: error: 'setup_max_cpus' undeclared (first use in this function)

Signed-off-by: Arnd Bergmann <arnd at arndb.de>
---
I'd like to apply this directly to the next/soc branch

diff --git a/arch/arm/mach-uniphier/Kconfig b/arch/arm/mach-uniphier/Kconfig
index a017b1dd9c78..b640458fd757 100644
--- a/arch/arm/mach-uniphier/Kconfig
+++ b/arch/arm/mach-uniphier/Kconfig
@@ -5,7 +5,7 @@ config ARCH_UNIPHIER
 	select ARM_GLOBAL_TIMER
 	select ARM_GIC
 	select HAVE_ARM_SCU
-	select HAVE_ARM_TWD
+	select HAVE_ARM_TWD if SMP
 	help
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