Move the command-related options to a submenu

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

Config.in

@@ -15,6 +15,8 @@ source "target/device/Config.in"
 
 menu "Build options"
 
+menu "Commands"
+
 config BR2_WGET
 	string "Wget command"
 	default "wget --passive-ftp -nd"
@@ -67,6 +69,8 @@ config BR2_TAR_OPTIONS
 	  E.g. " -v --exclude='*.svn*'" to exclude all .svn internal files
 	  and to be verbose.
 
+endmenu
+
 config BR2_DL_DIR
 	string "Download dir"
 	default "$(TOPDIR)/dl"