dm: arm: zynq: Enable device tree control in SPL

Move to using device tree control in SPL so that we can use the same driver
code in both SPL and U-Boot proper.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3992f69..97b9647 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -543,9 +543,12 @@
 	select CPU_V7
 	select SUPPORT_SPL
 	select OF_CONTROL
+	select SPL_OF_CONTROL
 	select DM
+	select SPL_DM
 	select DM_SPI
 	select DM_SPI_FLASH
+	select SPL_SEPARATE_BSS
 
 config ARCH_ZYNQMP
 	bool "Support Xilinx ZynqMP Platform"