Updating Telefonica BR (Vivo) APNs

Including Vivo Emergency APNs following Telefonica requirements

Bug: 438932023
Test: Not required as this is a sample file

Change-Id: I7caceb3241b3adf4dea433d16e35962e317a40a2
Signed-off-by: Fabricio Ferracioli <fferracioli@google.com>