Tune Khmer keyboard using keyHintLabelVerticalAdjustment

Bug: 11546184
Change-Id: I565c5202e3154e4f7d71611a9d68a02e57a1dd3c

java/res/xml/rowkeys_khmer1.xml

@@ -64,6 +64,7 @@
             <Key
                 latin:keyLabel="&#x17D0;"
                 latin:keyHintLabel="&#x17DA;"
+                latin:keyHintLabelVerticalAdjustment="-30%"
                 latin:moreKeys="&#x17DA;"
                 latin:keyLabelFlags="fontNormal" />
             <!-- U+17CF: "៏" KHMER SIGN AHSDA -->

java/res/xml/rowkeys_khmer2.xml

@@ -37,6 +37,7 @@
             <Key
                 latin:keyLabel="&#x17BA;"
                 latin:keyHintLabel="&#x17DD;"
+                latin:keyHintLabelVerticalAdjustment="40%"
                 latin:moreKeys="&#x17DD;"
                 latin:keyLabelFlags="fontNormal" />
             <!-- U+17C2: "ែ" KHMER VOWEL SIGN AE -->