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/board/ti/ti814x/evm.c b/board/ti/ti814x/evm.c
index 7f82e71..8ed80d2 100644
--- a/board/ti/ti814x/evm.c
+++ b/board/ti/ti814x/evm.c
@@ -11,6 +11,7 @@
 #include <cpsw.h>
 #include <env.h>
 #include <errno.h>
+#include <init.h>
 #include <net.h>
 #include <spl.h>
 #include <asm/arch/cpu.h>