treewide: mem: Move mtest related defines to Kconfig

Move below defines which are used by mtest utility to Kconfig.
CONFIG_SYS_MEMTEST_START
CONFIG_SYS_MEMTEST_END

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
[trini: Fix kmcoge5ne board, re-run migration as well]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 157a330..f9be198 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -750,6 +750,22 @@
 	help
 	  Use a more complete alternative memory test.
 
+config SYS_MEMTEST_START
+	hex "default start address for mtest"
+	default 0
+	help
+	  This is the default start address for mtest for simple read/write
+	  test. If no arguments are given to mtest, default address is used
+	  as start address.
+
+config SYS_MEMTEST_END
+	hex "default end address for mtest"
+	default 0x1000
+	help
+	  This is the default end address for mtest for simple read/write
+	  test. If no arguments are given to mtest, default address is used
+	  as end address.
+
 endif
 
 config CMD_SHA1SUM