Hi!
You don’t need a license to buy pork. However the places selling pork are very limited. Spinneys in Al Khalidyia has a pork section.
Regarding the liquor: The liquor license is dependant on your salary and you need a statement from your employer. Most people over here don’t want their employer to know that they drink alcohol at home. There are places in Abu Dhabi that sell without asking for a license. You can buy at the ADNH (Abud Dhabi National Hotel Company) behind the Carrefour at Airport Road and at the Capital Hotel in Tourist Club Area without a license.