board_f: Use a single condition for reserve_logbuffer()

CONFIG_ALT_LB_ADDR is really a detail of how this logbuffer is allocated
rather than whether to do it at all. So move the #ifdef into the function.
Signed-off-by: NSimon Glass <sjg@chromium.org>

common/board_f.c

@@ -337,13 +337,16 @@ static int setup_dest_addr(void)
 	return 0;
 }
 
-#if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
+#if defined(CONFIG_LOGBUFFER)
 static int reserve_logbuffer(void)
 {
+#ifndef CONFIG_ALT_LB_ADDR
 	/* reserve kernel log buffer */
 	gd->relocaddr -= LOGBUFF_RESERVE;
 	debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
 		gd->relocaddr);
+#endif
+
 	return 0;
 }
 #endif
@@ -887,7 +890,7 @@ static const init_fnc_t init_sequence_f[] = {
 	 *  - board info struct
 	 */
 	setup_dest_addr,
-#if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
+#if defined(CONFIG_LOGBUFFER)
 	reserve_logbuffer,
 #endif
 #ifdef CONFIG_PRAM