hal: Fix compilation errors

- New structure members are defined in LA for
  audio_aptx_default_config, audio_aptx_encoder_config,
  which is not taken care in LE.
- So, to fix compilation errors, defined a flag between
  LE and LA codes.

Change-Id: I530d39d3ec030f72828c2a75c29efab409f44845
1 file changed