Revert "Remove deprecated (hidden) enableForegroundNdefPush API's." (DO NOT MERGE).

This reverts commit 562dfff6. These API's are still used
by GMM in the version that ships with MR1, so we need them to keep Beam working for
GMM. Note that these APIs are hidden.

From version 5.13 onwards GMM will use the new API's.

Change-Id: I316a9c9b7d0052a14f6c1df70f2ed463bca61800