common: move board_info.c prototypes in init.h

Move function prototype for common/init/board_init.c
from common.h to init.h

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>

include/init.h

@@ -163,6 +163,9 @@ int misc_init_r(void);
 int init_func_vid(void);
 #endif
 
+/* common/board_info.c */
+int checkboard(void);
+int show_board_info(void);
 
 #endif	/* __ASSEMBLY__ */
 /* Put only stuff here that the assembler can digest */