Revert "Revert "Fix key letter size of 5-rows Thai keyboard""

This reverts commit 7a5ca9982fae2c17df4e597d2c54c81782946ed1.
Depends: Ia4fa5046b3106e2710b9d5df1a6cc5f2cf995ec7

Change-Id: I0b9d0125380efe898943dc26ae884378145c44a3
diff --git a/java/res/xml-sw768dp-land/kbd_thai.xml b/java/res/xml-sw768dp-land/kbd_thai.xml
index b7633df..0f8516f 100644
--- a/java/res/xml-sw768dp-land/kbd_thai.xml
+++ b/java/res/xml-sw768dp-land/kbd_thai.xml
@@ -23,6 +23,8 @@
     latin:rowHeight="20%p"
     latin:verticalGap="2.65%p"
     latin:keyTypeface="normal"
+    latin:keyLetterSize="@fraction/key_letter_ratio_5rows"
+    latin:keyShiftedLetterHintRatio="@fraction/key_uppercase_letter_ratio_5rows"
     latin:touchPositionCorrectionData="@null"
 >
     <include