Use smaller text size for 5-rows keyboard

Change-Id: I065824f3fab941560980d3d9387730e4c25eb12b
diff --git a/java/res/values/config.xml b/java/res/values/config.xml
index 9f556a6..7091213 100644
--- a/java/res/values/config.xml
+++ b/java/res/values/config.xml
@@ -60,7 +60,7 @@
 
     <!-- For 5-row keyboard -->
     <fraction name="config_key_vertical_gap_5row">3.20%p</fraction>
-    <fraction name="config_key_letter_ratio_5row">64%</fraction>
+    <fraction name="config_key_letter_ratio_5row">55%</fraction>
     <fraction name="config_key_shifted_letter_hint_ratio_5row">41%</fraction>
 
     <dimen name="config_suggestions_strip_height">40dp</dimen>