Revert "cfg80211: enforce lack of interface combinations"

Revert "cfg80211: enforce lack of interface combinations"

This reverts commit 8e8b41f9d8c8e63fc92f899ace8da91a490ac573.

Bug 1211946

Change-Id: Ie30436e7e2528708d6d9752f231172e784bca917
Signed-off-by: Om Prakash Singh <omp@nvidia.com>
Reviewed-on: http://git-master/r/219753
(cherry picked from commit b1983bf9f869d08595d333ff464a2ffc655a8ae9)
Reviewed-on: http://git-master/r/279378
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Tested-by: Bharat Nihalani <bnihalani@nvidia.com>