Pork is quite unusual, but not unheard of, in Indian cuisine. This is so particularly for dishes that arose from the Mughal empire, which was strongly influenced by Arabic and Islamic traditions, where pork is uncommon, if not forbidden by religious edict. Korma dishes are one such dish, being part of the Mughlai cuisine.
Red meats such as sheep (lamb, hogget, but particularly mutton), goat or sometimes beef or deer are much more commonly used in these sorts of dishes.
Having said that, most of the packet mixes, such as you linked, are suitable for any sort of meat that you like, and there's nothing to forbid you using whatever suits you other than dietary restrictions for you or your friends/family. Your pork bones, or even chunks of any meat without bones should be fine for this mix.
The type of your pork cut might mean that it comes out a bit tough without a long and slow cooking time (more than an hour or two) as it will contain a fair bit of connective tissues (gristle etc.), but will be suitably tasty. In future I'd recommend that you get a cut that is recommended for shorter cooking times such as cutlet, steaks or chops.