Bring back "Added support for FDN Check."

This reverts commit Ie690ec111ba445b0a4474f2033b249e696400eca.

If FDN is available and enabled, then calls to only numbers
present in the FDN list are allowed.

Bug: 218262162
Test: Manual, telephony unit and cts tests
      atest
      FrameworksTelephonyTests:com.android.internal.telephony.FdnUtilsTest
Merged-In: I8165d5e6785ba42622ee9ca7ad8c1a138bbc4dfb
Change-Id: I8165d5e6785ba42622ee9ca7ad8c1a138bbc4dfb