Based on the DisplayPort CTS PHY test, current EQ settings were not
sufficient to pass the test margins. Adjust the EQ from 2dB to 0dB as
recommended by the display team based on the results.
Change-Id: Ib0b6c7f9ccb2d8385d57be0aceda704dc98f7f18
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>