Update for 28 bit LG codes in JVC

This is a patch to allow for 28 bit codes from LG remotes to be decoded in the JVC section. Since they are just a longer version of the JVC code, it makes sense not to create a separate cloned decoding function. 

There is also a patch to define #define LG_BITS 28 but I am still working out GitHub and I will merge that in a moment