common: board_f: Fix style violations

Fix some style violations in the board_f file.
Reviewed-by: NSimon Glass <sjg@chromium.org>
Signed-off-by: NMario Six <mario.six@gdsys.cc>

common/board_f.c

@@ -49,7 +49,7 @@
 #ifdef XTRN_DECLARE_GLOBAL_DATA_PTR
 #undef	XTRN_DECLARE_GLOBAL_DATA_PTR
 #define XTRN_DECLARE_GLOBAL_DATA_PTR	/* empty = allocate here */
-DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR);
+DECLARE_GLOBAL_DATA_PTR = (gd_t *)(CONFIG_SYS_INIT_GD_ADDR);
 #else
 DECLARE_GLOBAL_DATA_PTR;
 #endif