common: move init_helpers.h prototypes in init.h

Merge init_helpers.h in the new file init.h
with only prototypes for init_cache_f_r
used in common/board_f.c
Signed-off-by: NPatrick Delaunay <patrick.delaunay@st.com>

arch/x86/lib/spl.c

@@ -6,7 +6,6 @@
 
 #include <common.h>
 #include <debug_uart.h>
-#include <init_helpers.h>
 #include <spl.h>
 #include <asm/cpu.h>
 #include <asm/mtrr.h>

common/board_f.c

@@ -18,7 +18,6 @@
 #include <fs.h>
 #include <i2c.h>
 #include <initcall.h>
-#include <init_helpers.h>
 #include <malloc.h>
 #include <mapmem.h>
 #include <os.h>

common/board_r.c

@@ -23,7 +23,6 @@
 #include <fdtdec.h>
 #include <ide.h>
 #include <initcall.h>
-#include <init_helpers.h>
 #ifdef CONFIG_PS2KBD
 #include <keyboard.h>
 #endif

include/init.h

@@ -101,6 +101,13 @@ int dram_init_banksize(void);
  */
 int arch_reserve_stacks(void);
 
+/**
+ * init_cache_f_r() - Turn on the cache in preparation for relocation
+ *
+ * @return 0 if OK, -ve on error
+ */
+int init_cache_f_r(void);
+
 int print_cpuinfo(void);
 int timer_init(void);
 int reserve_mmu(void);

include/init_helpers.h

-/*
- * (C) Copyright 2011
- * Graeme Russ, <graeme.russ@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#ifndef _INIT_HELPERS_H_
-#define _INIT_HELPERS_H_
-
-/**
- * init_cache_f_r() - Turn on the cache in preparation for relocation
- *
- * @return 0 if OK, -ve on error
- */
-int init_cache_f_r(void);
-
-#endif	/* _INIT_HELPERS_H_ */