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/configs/thunderx_88xx_defconfig b/configs/thunderx_88xx_defconfig
index 8242103..9bbff6c 100644
--- a/configs/thunderx_88xx_defconfig
+++ b/configs/thunderx_88xx_defconfig
@@ -1,5 +1,6 @@
 CONFIG_ARM=y
 CONFIG_TARGET_THUNDERX_88XX=y
+CONFIG_IDENT_STRING=" for Cavium Thunder CN88XX ARM v8 Multi-Core"
 CONFIG_DEFAULT_DEVICE_TREE="thunderx-88xx"
 CONFIG_BOOTDELAY=5
 CONFIG_HUSH_PARSER=y