armv8: ls1088ardb: Add SD boot support for ls1088

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Signed-off-by: Raghav Dogra <raghav.dogra@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 30e71b2..20d60b1 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -931,6 +931,7 @@
 	select ARMV8_MULTIENTRY
 	select ARCH_MISC_INIT
 	select BOARD_LATE_INIT
+	select SUPPORT_SPL
 	help
 	  Support for NXP LS1088ARDB platform.
 	  The LS1088A Reference design board (RDB) is a high-performance