streamline_config.pl: fix missing variable operator in debug print

Put in the dollar sign for the variable '$config'. That way, the debug
message has more meaning.

Signed-off-by: David Hunter <[e-mail]>
Signed-off-by: Masahiro Yamada <[e-mail]>

scripts/kconfig/streamline_config.pl

···
 
 	    # Check if something other than a module selects this config
 	    if (defined($orig_configs{$conf}) && $orig_configs{$conf} ne "m") {
-		dprint "$conf (non module) selects config, we are good\n";
+		dprint "$conf (non module) selects $config, we are good\n";
 		# we are good with this
 		return;
 	    }