added Cambodia APNs

Change-Id: Ie753894b977425b72ff3a8066be18f58670b214b
added ONO and Euskaltel APNs

Change-Id: Iaf42e4527defc6732892be44be32c31c68d40ce1
added Public Mobile APN, corrected Rogers WAP APN

Change-Id: Ib8828b4344b3a5048c99fb530a4a5ce89119d4c4
added Axis, AWCC, MTN, Etisalat, Hutch, MPT APNs.

Also corrected leading 0s in APNs

Change-Id: Iaf82c0ed2d4db8816900d659ec6c47309cbef561