zynq: defconfig: Move CONFIG_OF_* to Kconfig

This commit moves:
- CONFIG_OF_CONTROL
- SPL_DISABLE_OF_CONTROL

from zynq_*_defconfig files into arch/arm/Kconfig "config ARCH_ZYNQ"

Signed-off-by: Jagan Teki <jteki@openedev.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 5f026f0..192d9cf 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -670,6 +670,8 @@
 	bool "Xilinx Zynq Platform"
 	select CPU_V7
 	select SUPPORT_SPL
+	select OF_CONTROL
+	select SPL_DISABLE_OF_CONTROL
 	select DM
 	select DM_SPI
 	select DM_SPI_FLASH