keymile: Make distinct kmeter1, and kmcoge5ne configs

The kmeter1, and kmcoge5ne boards also build from the same config
file with #ifdef logic.

Create a separate include config for each board with the #ifdef logic
resolved as needed.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
diff --git a/board/keymile/km83xx/Kconfig b/board/keymile/km83xx/Kconfig
index 0c4fa0b..fbbbb17 100644
--- a/board/keymile/km83xx/Kconfig
+++ b/board/keymile/km83xx/Kconfig
@@ -1,4 +1,4 @@
-if TARGET_KM8360
+if TARGET_KMETER1
 
 config SYS_BOARD
 	default "km83xx"
@@ -7,7 +7,20 @@
 	default "keymile"
 
 config SYS_CONFIG_NAME
-	default "km8360"
+	default "kmeter1"
+
+endif
+
+if TARGET_KMCOGE5NE
+
+config SYS_BOARD
+	default "km83xx"
+
+config SYS_VENDOR
+	default "keymile"
+
+config SYS_CONFIG_NAME
+	default "kmcoge5ne"
 
 endif