Adding SUPL NI Emergency Extension Time

Configurable by carrier config.xml resource

Bug: 118839234
Bug: 115361555
Bug: 112159033
Test: On device, see b/115361555#comment14
Change-Id: I52e61656cca8b6fa6468d32d2e69bf60f4c83c61
Merged-In: I52e61656cca8b6fa6468d32d2e69bf60f4c83c61