Adding APN for ATT AGMS Global (310-380)

b/26127989
(cherry picked from commit a8993504244cb7a275d5bcc24b57d455449121a1)

Change-Id: Iad496529c40513afdcf32a2c907c8cd361c10eaa
(cherry picked from commit dcc413b987cf4674f7d9bc163de358263eeb3bad)
1 file changed