Update tools/mkkconfig.bat; silence some Makefile output

Directory.mk

@@ -60,7 +60,7 @@ nothing:
 install:
 
 preconfig: $(foreach SDIR, $(SUBDIRS), $(SDIR)_preconfig)
-	$(MKKCONFIG) -m "$(shell cat Kmenu)"
+	$(Q) $(MKKCONFIG) -m "$(shell cat Kmenu)"
 
 context: $(foreach SDIR, $(SUBDIRS), $(SDIR)_context)
 

Makefile

@@ -114,8 +114,7 @@ context_serialize:
 context: context_serialize
 
 preconfig:$(foreach SDIR, $(BUILDIRS), $(SDIR)_preconfig)
-	echo subdirs done
+	$(Q) $(MKKCONFIG)
-	$(MKKCONFIG)
 
 .depdirs: $(foreach SDIR, $(CONFIGURED_APPS), $(SDIR)_depend)
 

tools/mkkconfig.bat

@@ -2,7 +2,7 @@
 
 REM apps/tools/mkkconfig.bat
 REM
-REM   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+REM   Copyright (C) 2015-2016 Gregory Nutt. All rights reserved.
 REM   Author: Gregory Nutt <gnutt@nuttx.org>
 REM
 REM Redistribution and use in source and binary forms, with or without
@@ -35,12 +35,12 @@ REM
 
 REM Parse command line arguments
 
-SET topdir=
+SET menu=
 SET kconfig=Kconfig
 
 :ArgLoop
 IF "%1"=="" GOTO :EndOfLoop
-IF "%1"=="-t" GOTO :SetTopDir
+IF "%1"=="-m" GOTO :SetMenu
 IF "%1"=="-o" GOTO :SetKconfig
 IF "%1"=="-h" GOTO :ShowUsage
 
@@ -51,9 +51,9 @@ GOTO :ShowUsage
 SET debug=-d
 GOTO :NextArg
 
-:SetTopDir
+:SetMenu
 SHIFT
-SET topdir=%1
+SET menu=%1
 GOTO :NextArg
 
 :SetKconfig
@@ -67,34 +67,6 @@ GOTO :ArgLoop
 REM Check input Parameters
 
 :EndOfLoop
-IF "%topdir%"=="" (
-  IF EXIST tools\mkkconfig.bat (
-    SET topdir=%cd%
-  ) ELSE (
-    cd ..
-    IF %ERRORLEVEL% GTR 0 (
-      Echo ERROR: failed cd ..
-      GOTO :End
-    )
-    IF EXIST tools\mkkconfig.bat (
-      SET topdir=%cd%
-    ) ELSE (
-      Echo ERROR: Cannot find top directory
-      GOTO :End
-    )
-  )
-) ELSE (
-  IF NOT EXIST "%topdir%" (
-    Echo ERROR: %topdir% does not EXIST
-    GOTO :End
-  )
-  Cd %topdir%
-  IF %ERRORLEVEL% GTR 0 (
-    Echo ERROR: failed cd %topdir%
-    GOTO :End
-  )
-)
-
 IF EXIST %kconfig% (
   Del /f /q %kconfig%
 REM   IF %ERRORLEVEL% GTR 0 (
@@ -107,27 +79,40 @@ Echo # > %kconfig%
 Echo # For a description of the syntax of this configuration file, >> %kconfig%
 Echo # see the file kconfig-language.txt in the NuttX tools repository. >> %kconfig%
 Echo # >> %kconfig%
+Echo # This file is autogenerated, do not edit. >> %kconfig%
+Echo # >> %kconfig%
+Echo >> %kconfig%
+
+IF %menu% NEQ "" (
+  Echo menu "%menu%" >> %kconfig%
+)
 
 DIR /B /A:D >_tmp_.dat
 
 Echo source "$APPSDIR/builtin/Kconfig" >> %kconfig%
 FOR /F "tokens=*" %%s IN (_tmp_.dat) do (
-  if "%%s" NEQ "builtin" Echo source "$APPSDIR/%%s/Kconfig" >> %kconfig%
+  IF EXIST %%s\Kconfig (
+    Echo source "$APPSDIR/%%s/Kconfig" >> %kconfig%
+  )
 )
 DEL _tmp_.dat
 
+IF %menu% NEQ "" (
+  Echo endmenu # %menu% >> %kconfig%
+)
+
 GOTO :End
 
 REM Exit showing usage
 
 :ShowUsage
-Echo USAGE: %0  [-d] [-t ^<topdir^>] [-o ^<kconfig-file^>]
+Echo USAGE: %0  [-d] [-m ^<menu^>] [-o ^<kconfig-file^>]
 Echo        %0  [-h]
 Echo Where:
 Echo  ^<-d^>:
 Echo    Enables debug output
-Echo  -t ^<topdir^>:
+Echo  -m ^<menu^>:
-Echo    Identifies the top applicatino directory
+Echo    Menu description
 Echo  -o ^<kconfig-file^>:
 Echo    Identifies the specific configuratin for the selected ^<board-name^>.
 Echo    This must correspond to a sub-directory under the board directory at