AFDO: Do not mutate on disabled modules

If a module is implicitly disabled due to compile_multilib: "64" on a
32-bit only device, we would insert a dependency to a non-existant AFDO
profile variation.

Test: presubmit
Bug: 350641338
Change-Id: I82851c4bc943405e48f7f35b3484fac2e509bfe5