NFC: add featurization of SmartCardService

Only want to compile SmartCardService when it is desired.

Change-Id: I3ca42e78edaa6723e4b9b3e9585d946e59d2da11
SmartcardService: Utilize constants for state changes and actions.

Change-Id: If5b4deadfb5e023b6556fcf70824d947e0a60959