dragon: wifi: update boardflags3 in cal file

Update boardflags3 value to help with BT-WiFi coex.

BUG=25768912
TEST=monitor the keyboard RSSI using wiced smart find me app.  Verify
that the RSSI level stays the same when connected to a 2.4 Ghz AP with
wifi power save enabled ("wlutil PM 2") & disabled ("wlutil PM 0").

Change-Id: Iaa72ef568bf9bb83a80e148543aaa2647dad2d7f
diff --git a/bcmdhd.cal b/bcmdhd.cal
index a9353a3..7a75804 100644
--- a/bcmdhd.cal
+++ b/bcmdhd.cal
@@ -5,8 +5,7 @@
 boardtype=0x06db
 boardflags=0x02400201
 boardflags2=0x00802000
-#boardflags3=0x08000000 external LPO
-boardflags3=0x4800000a
+boardflags3=0x4800010a
 macaddr=00:90:4c:14:b0:01
 ccode=0
 regrev=0