Revert "drm/amd/display: Disable PSR-SU on Parade 0803 TCON again"

This reverts commit 107a1163.

duplicated a change made in 6.6.8
a8f922ad

Cc: stable@vger.kernel.org # 6.6
Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>