audio: Add more legacy channel masks for the input direction

This is in order to achieve a better parity both with
legacy output channel masks and AIDL channel layouts.
The change only affects the XSD schema used to generate
a parser for legacy configuration files.

Bug: 283542128
Test: atest audio_aidl_conversion_tests
Change-Id: Ic69b94f6ec650e0814f0200dbef219567eac9fe2