Revert "Use system/audio to/from string converters in TypeConverter"

Revert "audio: Align lists of enum values between framework and HAL"

Revert submission 12851233-hal-enum-strings

Reason for revert: breaks slider device
Reverted Changes:
I4f64a8b61:Use system/audio to/from string converters in Type...
Iddaa92bf2:Move enums shared with HAL to audio-hal-enums.h
Ie5896775b:audio: Align lists of enum values between framewor...

Bug: 171262726
Change-Id: I7568c41c5641cf120ffacbfda4751c3bb1c4e4f8