ARM: shmobile: r8a7779: No TWD setup in C for Multiplatform

Skip the TWD setup in C for r8a7779 Multiplatform.
We should use DTS for the TWD device anyway.
Signed-off-by: NMagnus Damm <damm+renesas@opensource.se>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

arch/arm/mach-shmobile/smp-r8a7779.c

@@ -56,7 +56,7 @@ static struct rcar_sysc_ch *r8a7779_ch_cpu[4] = {
 	[3] = &r8a7779_ch_cpu3,
 };
 
-#ifdef CONFIG_HAVE_ARM_TWD
+#if defined(CONFIG_HAVE_ARM_TWD) && !defined(CONFIG_ARCH_MULTIPLATFORM)
 static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, R8A7779_SCU_BASE + 0x600, 29);
 void __init r8a7779_register_twd(void)
 {