Update BoardConfig to turn on h space compaction for only this device.

Bug: 16401001
Change-Id: I0242f9b7d2b2d021818d8bf7d9873393e3fde225
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 334207a..d8fd12e 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -126,5 +126,7 @@
 
 TARGET_RELEASETOOLS_EXTENSIONS := device/htc/flounder
 
+ART_USE_HSPACE_COMPACT=true
+
 # Include an expanded selection of fonts
 EXTENDED_FONT_FOOTPRINT := true