am d36d650a: NFC: async enabling/disabling, ala Bluewooth & Wifi.

Merge commit 'd36d650a8132e8aea375239e6dfff92708771b7a' into gingerbread-plus-aosp

* commit 'd36d650a8132e8aea375239e6dfff92708771b7a':
  NFC: async enabling/disabling, ala Bluewooth & Wifi.