common: Drop init.h from common header

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/spl.c b/arch/arm/cpu/armv8/fsl-layerscape/spl.c
index c020134..ec40df4 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/spl.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/spl.c
@@ -8,6 +8,7 @@
 #include <cpu_func.h>
 #include <env.h>
 #include <image.h>
+#include <init.h>
 #include <spl.h>
 #include <asm/cache.h>
 #include <asm/io.h>
diff --git a/arch/arm/cpu/armv8/s32v234/cpu.c b/arch/arm/cpu/armv8/s32v234/cpu.c
index f910b6e..5394a66 100644
--- a/arch/arm/cpu/armv8/s32v234/cpu.c
+++ b/arch/arm/cpu/armv8/s32v234/cpu.c
@@ -5,6 +5,7 @@
 
 #include <common.h>
 #include <cpu_func.h>
+#include <init.h>
 #include <asm/cache.h>
 #include <asm/io.h>
 #include <asm/system.h>
diff --git a/arch/arm/cpu/armv8/s32v234/generic.c b/arch/arm/cpu/armv8/s32v234/generic.c
index 98f526e..bc07dae 100644
--- a/arch/arm/cpu/armv8/s32v234/generic.c
+++ b/arch/arm/cpu/armv8/s32v234/generic.c
@@ -6,6 +6,7 @@
 #include <common.h>
 #include <clock_legacy.h>
 #include <cpu_func.h>
+#include <init.h>
 #include <net.h>
 #include <asm/io.h>
 #include <asm/arch/imx-regs.h>