pmb.parse.kconfig: explicitly add dependency on SWAP
Commit d8f2f201 removed the requirement of selecting MEMCG_SWAP for Kernels >= 6.1.
However, it did not fully account for the behavior change, as MEMCG_SWAP depends on both MEMCG and SWAP.
Commit d8f2f201 removed the requirement of selecting MEMCG_SWAP for Kernels >= 6.1.
However, it did not fully account for the behavior change, as MEMCG_SWAP depends on both MEMCG and SWAP.