x86: fsp: Add a new arch_fsp_init_r() hook

With FSP2 we need to run silicon init early after relocation. Add a new
hook for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

include/init.h

@@ -67,6 +67,17 @@ int mach_cpu_init(void);
  */
 int arch_fsp_init(void);
 
+/**
+ * arch_fsp_init() - perform post-relocation firmware support package init
+ *
+ * Where U-Boot relies on binary blobs to handle part of the system init, this
+ * function can be used to set up the blobs. This is used on some Intel
+ * platforms.
+ *
+ * Return: 0
+ */
+int arch_fsp_init_r(void);
+
 int dram_init(void);
 
 /**