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/omapl138_lcdk_defconfig b/configs/omapl138_lcdk_defconfig
index 76c7ed6..3565fae 100644
--- a/configs/omapl138_lcdk_defconfig
+++ b/configs/omapl138_lcdk_defconfig
@@ -24,6 +24,7 @@
 CONFIG_HUSH_PARSER=y
 CONFIG_CRC32_VERIFY=y
 # CONFIG_CMD_EEPROM is not set
+CONFIG_MX_CYCLIC=y
 # CONFIG_CMD_FLASH is not set
 # CONFIG_CMD_GPIO is not set
 CONFIG_CMD_NAND=y