arm: Tabify code for MMC initialization

The two modified lines were indented with spaces.
They are now indented with tabs.

Signed-off-by: Taylor Hutt <thutt@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

arch/arm/lib/board.c

@@ -599,8 +599,8 @@ void board_init_r(gd_t *id, ulong dest_addr)
 #endif
 
 #ifdef CONFIG_GENERIC_MMC
-       puts("MMC:   ");
-       mmc_initialize(gd->bd);
+	puts("MMC:   ");
+	mmc_initialize(gd->bd);
 #endif
 
 #ifdef CONFIG_HAS_DATAFLASH