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.