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/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c
index ab5e499..c4eeb9b 100644
--- a/drivers/pci/fsl_pci_init.c
+++ b/drivers/pci/fsl_pci_init.c
@@ -5,6 +5,7 @@
 
 #include <common.h>
 #include <env.h>
+#include <init.h>
 #include <malloc.h>
 #include <asm/fsl_serdes.h>