x86: fsp: Add boot_mode as a member of struct shared_data

Save boot_mode in struct shared_data for future refactoring.

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

arch/x86/include/asm/fsp/fsp_support.h

@@ -21,6 +21,7 @@
 struct shared_data {
 	struct fsp_header	*fsp_hdr;
 	u32			stack_top;
+	u32			boot_mode;
 	struct upd_region	fsp_upd;
 };
 

arch/x86/lib/fsp/fsp_support.c

@@ -153,6 +153,7 @@ void fsp_init(u32 stack_top, u32 boot_mode, void *nvs_buf)
 
 	shared_data.fsp_hdr = fsp_hdr;
 	shared_data.stack_top = stack_top;
+	shared_data.boot_mode = boot_mode;
 
 	post_code(POST_PRE_MRC);