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/mips/mach-jz47xx/jz4780/timer.c b/arch/mips/mach-jz47xx/jz4780/timer.c
index b32a2f5..340e35e 100644
--- a/arch/mips/mach-jz47xx/jz4780/timer.c
+++ b/arch/mips/mach-jz47xx/jz4780/timer.c
@@ -9,6 +9,7 @@
 #include <config.h>
 #include <common.h>
 #include <div64.h>
+#include <init.h>
 #include <irq_func.h>
 #include <time.h>
 #include <asm/io.h>