aacdec: don't report DRC_COMPRESSION_MODE back

DRC_COMPRESSION_MODE is not meant to be read back from components

Bug: 149751672
Test: atest CtsMediaTestCases -- --module-arg CtsMediaTestCases:size:small
Test: atest CtsMediaTestCases:DecoderTestAacDrc
Change-Id: Id1d5968e6a64d72ea2aec743807dc3b0f1e2024c
1 file changed