msm8974-common: gps: Default apn ip type to ipv4

If a apn ip type is not found for a agps
data connection, default to using ipv4
instead of invalid.

CRs-fixed: 1007417

Bug: 28986221

Change-Id: Icc71de1fab3fd5967901c39a5c11eaea17b7766c
Signed-off-by: D. Andrei Măceș <Andrei.Maces@alumni.nd.edu>

gps/loc_api/libloc_api_50001/loc.cpp

@@ -730,7 +730,7 @@ static int  loc_agps_open_with_apniptype(const char* apn, ApnIpType apnIpType)
             bearerType = AGPS_APN_BEARER_IPV4V6;
             break;
         default:
-            bearerType = AGPS_APN_BEARER_INVALID;
+            bearerType = AGPS_APN_BEARER_IPV4;
             break;
     }