Convert CONFIG_MX_CYCLIC to Kconfig

This converts the following to Kconfig:
   CONFIG_MX_CYCLIC

Signed-off-by: Adam Ford <aford173@gmail.com>
Acked-by: David Lechner <david@lechnology.com>
diff --git a/configs/da850evm_direct_nor_defconfig b/configs/da850evm_direct_nor_defconfig
index 407a30f..2b5b0ea 100644
--- a/configs/da850evm_direct_nor_defconfig
+++ b/configs/da850evm_direct_nor_defconfig
@@ -20,6 +20,7 @@
 # CONFIG_CMD_BOOTZ is not set
 CONFIG_CMD_IMLS=y
 CONFIG_CRC32_VERIFY=y
+CONFIG_MX_CYCLIC=y
 CONFIG_CMD_DM=y
 # CONFIG_CMD_GPT is not set
 # CONFIG_CMD_MMC is not set