Parse audio config codec capability for LE devices

 1. Rename function getHwOffloadEncodingFormatsSupportedForA2DP
    to getHwOffloadFormatsSupportedForBluetoothMedia
 2. Add audio format for LC3
 3. Add public class BluetoothLeAudioCodecConfig to store the
    codec for LE audio
 4. Add test case for BluetoothLeAudioCodecConfig

Tag: #feature
Bug: 203535499
Bug: 150670922
Test: atest BluetoothLeAudioCodecConfigTest BluetoothInstrumentationTests
Change-Id: I5f64d9078ca2c07e13cffd83b879dd95468ed313
Merged-In: I5f64d9078ca2c07e13cffd83b879dd95468ed313