spl_mmc: Make FAT checks / calls guarded with CONFIG_SPL_FAT_SUPPORT

Signed-off-by: Tom Rini <trini@ti.com>

arch/arm/cpu/armv7/omap-common/spl_mmc.c

@@ -84,6 +84,7 @@ end:
 	}
 }
 
+#ifdef CONFIG_SPL_FAT_SUPPORT
 static void mmc_load_image_fat(struct mmc *mmc)
 {
 	s32 err;
@@ -116,6 +117,7 @@ end:
 		hang();
 	}
 }
+#endif
 
 void spl_mmc_load_image(void)
 {
@@ -140,9 +142,11 @@ void spl_mmc_load_image(void)
 	if (boot_mode == MMCSD_MODE_RAW) {
 		debug("boot mode - RAW\n");
 		mmc_load_image_raw(mmc);
+#ifdef CONFIG_SPL_FAT_SUPPORT
 	} else if (boot_mode == MMCSD_MODE_FAT) {
 		debug("boot mode - FAT\n");
 		mmc_load_image_fat(mmc);
+#endif
 	} else {
 		puts("spl: wrong MMC boot mode\n");
 		hang();