rockchip: rk3399: default enable SPL LIBCOMMON and LIBGENERIC

We needs SPL LIBCOMMON and LIBGENERIC for all boards,
so we can enable them by default and no need to define
in each board.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/mach-rockchip/rk3399/Kconfig b/arch/arm/mach-rockchip/rk3399/Kconfig
index 799b326..6660d05 100644
--- a/arch/arm/mach-rockchip/rk3399/Kconfig
+++ b/arch/arm/mach-rockchip/rk3399/Kconfig
@@ -73,6 +73,12 @@
 config SYS_MALLOC_F_LEN
 	default 0x4000
 
+config SPL_LIBCOMMON_SUPPORT
+	default y
+
+config SPL_LIBGENERIC_SUPPORT
+	default y
+
 config TPL_LDSCRIPT
 	default "arch/arm/mach-rockchip/u-boot-tpl-v8.lds"