Device could not use wifi hotspot when data card switch to sim2

STEPS TO REPRODUCE:
1. Test devide insert two sim card into the phone,Sim1 do not support DUN APN and sim2 support DUP APN
2. Switch data card to sim2
2. Enable wifi hotspot
3. Reference phone connect test device wifi hotspot and access website

OBSERVED RESULTS:
Reference phone could connect to test device wifi hotspot but could not access to Internet

Test: Whether wifi hotspot available when sim2 which support DUN APN is data card
Change-Id: I733ccea273b03efc6bbc59c3308d0b7941eb282b