New shortcodes to safelist (Q2 2020)

Add free short code 455677 for Canada Carrier Freedom Mobile.

Correct Typo Argentia to Argentina

Bug: 149480361
Bug: 144592062
Test: Validation with local and AOSP environment completed
Change-Id: I2ce0294325d9695860a349e0bfd12277c5a36a16
Merged-In: I4b1b0337a9d3531d74d3e5a31ea246a80ac1c280
Merged-In: Ibc8ed8c9f13b5b1137439c36ac79936127a7b213