set height calculation to make it square

Change-Id: Id4e54fdda141b47049e182412d6ece997f6f3c73
diff --git a/bootanimation/generate-bootanimation.sh b/bootanimation/generate-bootanimation.sh
index 43c7900..839e203 100644
--- a/bootanimation/generate-bootanimation.sh
+++ b/bootanimation/generate-bootanimation.sh
@@ -11,9 +11,9 @@
 fi
 
 IMAGESCALEWIDTH="$IMAGEWIDTH"
-IMAGESCALEHEIGHT=$(expr $IMAGESCALEWIDTH / 2)
+IMAGESCALEHEIGHT=$(expr $IMAGESCALEWIDTH / 1)
 
-IMAGEHEIGHT=$(expr $IMAGEWIDTH / 2)
+IMAGEHEIGHT=$(expr $IMAGEWIDTH / 1)
 
 RESOLUTION=""$IMAGEWIDTH"x"$IMAGEHEIGHT""