Convert CONFIG_IODELAY_RECALIBRATION to Kconfig

This converts the following to Kconfig:
   CONFIG_IODELAY_RECALIBRATION

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-omap2/omap5/Kconfig b/arch/arm/mach-omap2/omap5/Kconfig
index 18a6676..0787d19 100644
--- a/arch/arm/mach-omap2/omap5/Kconfig
+++ b/arch/arm/mach-omap2/omap5/Kconfig
@@ -1,7 +1,11 @@
 if OMAP54XX
 
+config IODELAY_RECALIBRATION
+	bool
+
 config DRA7XX
 	bool
+	select IODELAY_RECALIBRATION
 	select SYS_OMAP_ABE_SYSCK
 	help
 	  DRA7xx is an OMAP based SOC with Dual Core A-15s.
diff --git a/include/configs/am57xx_evm.h b/include/configs/am57xx_evm.h
index 340a8ce..dacfd41 100644
--- a/include/configs/am57xx_evm.h
+++ b/include/configs/am57xx_evm.h
@@ -14,8 +14,6 @@
 #include <environment/ti/dfu.h>
 #include <linux/sizes.h>
 
-#define CONFIG_IODELAY_RECALIBRATION
-
 #define CFG_SYS_NS16550_COM1		UART1_BASE	/* Base EVM has UART0 */
 #define CFG_SYS_NS16550_COM2		UART2_BASE	/* UART2 */
 #define CFG_SYS_NS16550_COM3		UART3_BASE	/* UART3 */
diff --git a/include/configs/dra7xx_evm.h b/include/configs/dra7xx_evm.h
index 8217712..ac3fcac 100644
--- a/include/configs/dra7xx_evm.h
+++ b/include/configs/dra7xx_evm.h
@@ -13,8 +13,6 @@
 
 #include <environment/ti/dfu.h>
 
-#define CONFIG_IODELAY_RECALIBRATION
-
 #define CONFIG_VERY_BIG_RAM
 #define CONFIG_MAX_MEM_MAPPED		0x80000000