target/config: Allow targets to require kernel2minor host package

Signed-off-by: Phil Sutter <phil@nwl.cc>

target/config/Config.in.tools

@@ -242,6 +242,15 @@ config ADK_HOST_BUILD_MTD_UTILS
 	default y if ADK_HOST_NEED_MTD_UTILS
 	default n
 
+config ADK_HOST_NEED_KERNEL2MINOR
+	bool
+	default n
+
+config ADK_HOST_BUILD_KERNEL2MINOR
+	bool
+	default y if ADK_HOST_NEED_KERNEL2MINOR
+	default n
+
 config ADK_HOST_BUILD_PATCHELF
 	bool
 	default n