voice: Minor tweaks for Chineese TTS

Change-Id: I717a40cd00e9deabf093aabd05bc2608488c5f56

apps/lang/chinese-simp.lang

@@ -771,7 +771,7 @@
     *: "带通滤波器%d"
   </dest>
   <voice>
-    *: "带通滤波器%d"
+    *: "带通滤波器"
   </voice>
 </phrase>
 <phrase>

tools/builds.pm

@@ -606,12 +606,12 @@ sub simbuilds {
     # Everything else in alphabetical order
     'chinese-simp' => {  # Mandarin?
 	'lang' => 'chinese-simp',
-	'name' => '(Chinese Simplified)',
+	'name' => '简体中文 (Chinese Simplified)',
         'short' => 'zh_CN',
         'defengine' => 'espeak',
 	'engines' => {
 	    'espeak' => '-vzh',
-	    'gtts' => '-l zh-CN',
+	    'gtts' => '-l zh',
 	    'piper' => 'zh_CN-huayan-medium.onnx',
 	},
         'enabled' => 0,

tools/voice.pl

@@ -87,7 +87,7 @@ my %festival_lang_map = (
 
 my %gtts_lang_map = (
     'english' => '-l en -t co.uk',  # Always first, it's the golden master
-    'chinese-simp' => '-l zh-CN',
+    'chinese-simp' => '-l zh',
     'czech' => '-l cs',
     'dansk' => '-l da',
     'deutsch' => '-l de',