Allow google dialer code to be compiled against M and N SDKs for enterprise features

Following dialer's practice, use src-N and pre-N to separate implementation
in different build sdk


Change-Id: Ia9bd420cb2a96b1c31aa3ce2a61fd772b8811f2e
11 files changed
tree: 17f543063cc141b82cc3917dca6b81843dcba118
  1. assets/
  2. res/
  3. src/
  4. src-N/
  5. src-pre-N/
  6. TestCommon/
  7. tests/