Kconfig: Move config IDENT_STRING to Kconfig

Move the config IDENT_STRING to Kconfig and migrate all boards

[sivadur: Migrate zynq boards]
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
[trini: Update configs, add some default to sunxi Kconfig]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/common/Kconfig b/common/Kconfig
index 35f4279..c69c141 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -198,6 +198,11 @@
 	  The buffer is allocated immediately after the malloc() region is
 	  ready.
 
+config IDENT_STRING
+	string "Board specific string to be added to uboot version string"
+	help
+	  This options adds the board specific name to u-boot version.
+
 config SYS_NO_FLASH
 	bool "Disable support for parallel NOR flash"
 	default n