tqma6: Do not print the board name twice

Currently, the devicetree model as well as the board variant name
are shown:
...
Model: TQ TQMa6S/DL on MBa6x
Board: TQMa6DL on a MBa6x
...

Unselect the CONFIG_DISPLAY_BOARDINFO option so that the
board name is printed only once in board_late_init() instead.

Signed-off-by: Fabio Estevam <festevam@denx.de>

board/tq/tqma6/tqma6.c

@@ -230,11 +230,6 @@ int board_late_init(void)
 
 	tqma6_bb_board_late_init();
 
-	return 0;
-}
-
-int checkboard(void)
-{
 	printf("Board: %s on a %s\n", tqma6_get_boardname(),
 	       tqma6_bb_get_boardname());
 	return 0;

configs/tqma6dl_mba6_mmc_defconfig

@@ -17,6 +17,7 @@ CONFIG_USE_BOOTCOMMAND=y
 CONFIG_BOOTCOMMAND="run mmcboot; run netboot; run panicboot"
 CONFIG_DEFAULT_FDT_FILE="imx6dl-mba6x.dtb"
 CONFIG_SYS_PBSIZE=532
+# CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_MAXARGS=32
 CONFIG_CMD_BOOTZ=y