Fix N checking

Cherry pick to reflect code changes. The dialer in system image
is using //vendor/unbundled_google/packages/PrebuiltGoogleDialer

This was missed because it was not using ContactCommon compat library but
directly using Build.VERSION.CODENAME.

No other instances of Build.VERSION.CODENAME are found.

Bug: 29420691
Change-Id: Ia01a0aa1d95014da4abc2873a67cc0905fe8eb5f
1 file changed