Add new devices and update mirror descriptions

Change mirror descriptions to Americas and Europe instead of primary
and backup.

Add new devices:
-Hyundai Titan LTE
-LG K10
-Samsung Galaxy S5 Exynos
-Samsung Galaxy S5 LTE-A
-Samsung Galaxy S5 Plus (update maintainer)

Change-Id: I8eb4144880ec2aa25742d9cf87e0e601e015de74
6 files changed