Make Spacer as extended Key class

Bug: 5275003
Change-Id: I809a8ca363ba72b22ac5cfd926414990f7e8467c
diff --git a/java/res/xml-sw600dp/kbd_phone.xml b/java/res/xml-sw600dp/kbd_phone.xml
index 0331389..303f814 100644
--- a/java/res/xml-sw600dp/kbd_phone.xml
+++ b/java/res/xml-sw600dp/kbd_phone.xml
@@ -105,7 +105,7 @@
         <Key
             latin:keyStyle="nonSpecialBackgroundSpaceKeyStyle"
             latin:keyXPos="15.625%p"
-            latin:keyWidth="18.67%p" />
+            latin:keyWidth="18.50%p" />
         <Key
             latin:keyStyle="numStarKeyStyle"
             latin:keyXPos="38.867%p" />