gps: Enable XTRA servers and version check

Apparently users are getting faster locks with this.

Change-Id: Ie20aeff153023d01bd29b33680375234cace2ddd

gps/etc/gps.conf

@@ -1,15 +1,15 @@
 #Uncommenting these urls would only enable
 #the power up auto injection and force injection(test case).
-#XTRA_SERVER_1=http://xtrapath1.izatcloud.net/xtra2.bin
-#XTRA_SERVER_2=http://xtrapath2.izatcloud.net/xtra2.bin
-#XTRA_SERVER_3=http://xtrapath3.izatcloud.net/xtra2.bin
+XTRA_SERVER_1=http://xtrapath1.izatcloud.net/xtra2.bin
+XTRA_SERVER_2=http://xtrapath2.izatcloud.net/xtra2.bin
+XTRA_SERVER_3=http://xtrapath3.izatcloud.net/xtra2.bin
 
 #Version check for XTRA
 #DISABLE = 0
 #AUTO    = 1
 #XTRA2   = 2
 #XTRA3   = 3
-XTRA_VERSION_CHECK=0
+XTRA_VERSION_CHECK=1
 
 # Error Estimate
 # _SET = 1