Add Arabic percent sign

Bug: 5046333
Change-Id: I7be8c465ce6be2b78d9e8ece4dc4119941230d97

java/res/values-ar/donottranslate-altchars.xml

@@ -58,9 +58,12 @@
     <string name="keylabel_for_symbols_comma">\u060c</string>
     <string name="keylabel_for_symbols_question">\u061f</string>
     <string name="keylabel_for_symbols_semicolon">\u061b</string>
+    <!-- \u066a: ARABIC PERCENT SIGN -->
+    <string name="keylabel_for_symbols_percent">\u066a</string>
     <string name="alternates_for_symbols_comma">,</string>
     <string name="alternates_for_symbols_question">\?,¿</string>
     <string name="alternates_for_symbols_semicolon">;</string>
+    <string name="alternates_for_symbols_percent">%,‰</string>
     <string name="keylabel_for_apostrophe">"،"</string>
     <string name="keylabel_for_dash">"."</string>
     <string name="keyhintlabel_for_apostrophe">"؟"</string>

java/res/values/donottranslate-altchars.xml

@@ -80,9 +80,11 @@
     <string name="keylabel_for_symbols_comma">,</string>
     <string name="keylabel_for_symbols_question">\?</string>
     <string name="keylabel_for_symbols_semicolon">;</string>
+    <string name="keylabel_for_symbols_percent">%</string>
     <string name="alternates_for_symbols_comma"></string>
     <string name="alternates_for_symbols_question">¿</string>
     <string name="alternates_for_symbols_semicolon"></string>
+    <string name="alternates_for_symbols_percent">‰</string>
     <string name="keylabel_for_apostrophe">\'</string>
     <string name="keylabel_for_dash">-</string>
     <string name="keyhintlabel_for_apostrophe">\"</string>

java/res/xml-sw600dp/kbd_symbols.xml

@@ -75,8 +75,8 @@
         <Key
             latin:keyStyle="currencyKeyStyle" />
         <Key
-            latin:keyLabel="%"
-            latin:popupCharacters="‰" />
+            latin:keyLabel="@string/keylabel_for_symbols_percent"
+            latin:popupCharacters="@string/alternates_for_symbols_percent" />
         <Key
             latin:keyLabel="&amp;" />
         <Key

java/res/xml-sw768dp/kbd_symbols.xml

@@ -83,8 +83,8 @@
         <Key
             latin:keyStyle="currencyKeyStyle" />
         <Key
-            latin:keyLabel="%"
-            latin:popupCharacters="‰" />
+            latin:keyLabel="@string/keylabel_for_symbols_percent"
+            latin:popupCharacters="@string/alternates_for_symbols_percent" />
         <Key
             latin:keyLabel="&amp;" />
         <Key

java/res/xml/kbd_symbols.xml

@@ -72,8 +72,8 @@
         <Key
             latin:keyStyle="currencyKeyStyle" />
         <Key
-            latin:keyLabel="%"
-            latin:popupCharacters="‰" />
+            latin:keyLabel="@string/keylabel_for_symbols_percent"
+            latin:popupCharacters="@string/alternates_for_symbols_percent" />
         <Key
             latin:keyLabel="&amp;" />
         <Key