Audio V4: Synchronize the devices between the policy XSD and .hal

 - The ALL devices should not appear in the XSD as they are helpers for
enum value validity checks.
 - Add the V4 values HEARING AIDS, ECHO_CANCELLER, BLUETOOTH_BLE.
 - Sort the values in the same order as the enum values in
audio-base.h for easier comparison.

Bug: 77307068
Test: xmllint -xinclude --schema \
        hardware/interfaces/audio/4.0/config/audio_policy_configuration.xsd \
        out/target/product/walleye/vendor/etc/audio_policy_configuration.xml
Signed-off-by: Kevin Rocard <krocard@google.com>

Change-Id: I8b970d21eb0b3f256d6866be9ef935d12283076e