arch: arm: mach-k3: j721e: add support for UDA FS

When selecting UDA partition for booting. MMC read
mode was selected as RAW.

Due to growing/changing size of u-boot and tispl
images.
It will be better change to FS in case of UDA FS instead of
adjusting offsets with new change.

Signed-off-by: Udit Kumar <u-kumar1@ti.com>
diff --git a/arch/arm/mach-k3/j721e_init.c b/arch/arm/mach-k3/j721e_init.c
index 0c5d41a..b616457 100644
--- a/arch/arm/mach-k3/j721e_init.c
+++ b/arch/arm/mach-k3/j721e_init.c
@@ -294,7 +294,7 @@
 {
 	switch (boot_device) {
 	case BOOT_DEVICE_MMC1:
-		return MMCSD_MODE_EMMCBOOT;
+		return (spl_mmc_emmc_boot_partition(mmc) ? MMCSD_MODE_EMMCBOOT : MMCSD_MODE_FS);
 	case BOOT_DEVICE_MMC2:
 		return MMCSD_MODE_FS;
 	default: