common: Move ll_boot_init() to init.h

This is an init-related function so belongs in that file. Move it.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c
index 1d4064e..90f224b 100644
--- a/drivers/pci/pci_rom.c
+++ b/drivers/pci/pci_rom.c
@@ -26,6 +26,7 @@
 #include <bios_emul.h>
 #include <dm.h>
 #include <errno.h>
+#include <init.h>
 #include <malloc.h>
 #include <pci.h>
 #include <pci_rom.h>