Updated TELUS and related MVNO APN settings

Several APN values were referencing legacy IP addresses,
these were replaced with URLs and redundant/test APN
settings were removed.

Test: manual - tested against values provided to vendors

Change-Id: I7c3bb751867a792a1c52e78db791ce9486256032
Signed-off-by: Garett Beukeboom <garett.beukeboom@telus.com>