dm: core: Add SPL Kconfig for REGMAP and SYSCON

Add SPL Kconfig for REGMAP and SYSCON, so REGMAP and SYSCON can
remove from SPL stage.

Signed-off-by: Lin Huang <hl@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/firefly-rk3288_defconfig b/configs/firefly-rk3288_defconfig
index c11bde4..47731b8 100644
--- a/configs/firefly-rk3288_defconfig
+++ b/configs/firefly-rk3288_defconfig
@@ -12,11 +12,13 @@
 CONFIG_CMD_REGULATOR=y
 CONFIG_SPL_OF_CONTROL=y
 CONFIG_REGMAP=y
+CONFIG_SPL_REGMAP=y
 CONFIG_SYSCON=y
 CONFIG_CLK=y
 CONFIG_SPL_CLK=y
 CONFIG_ROCKCHIP_GPIO=y
 CONFIG_SYS_I2C_ROCKCHIP=y
+CONFIG_SPL_SYSCON=y
 CONFIG_LED=y
 CONFIG_LED_GPIO=y
 CONFIG_RESET=y