flounder: use property to load gps HAL

For device is wifi version, set ro.hardware.gps=bcm47521
to load gps.bcm47521.so HAL

Change-Id: I64249575782b14a6b3e47cbb24a5c7b498e2f3d1
diff --git a/ueventd.flounder.rc b/ueventd.flounder.rc
index e29ac77..6cc9d9f 100644
--- a/ueventd.flounder.rc
+++ b/ueventd.flounder.rc
@@ -26,7 +26,8 @@
 /dev/nvhdcp0    0666    system  system
 /dev/nvhdcp1    0666    system  system
 /dev/nvhost*    0666    root    root
-/dev/ttyHS1     0660    gps     system
+/dev/ttyTHS1    0660    gps     system
+/dev/gps_onoff  0660    gps     system
 /dev/ttyHS2     0660    bluetooth    net_bt_stack
 /dev/ttyTHS2    0660    bluetooth    net_bt_stack
 #for FM V4L2 Radio