MLK-24916-3: drm: bridge: synopsys: Add HBR support for gp audio

Only non_pcm, 32bit, 192kHz, 8channel streams be recognized as
HBR streams.

In order to support this feature, need to enhance the API in
dw-hdmi driver.

The test command is:
$iecset -c 4 audio off
$aplay -Dhw:4 -r 192000 -c 8 -f S32_LE out_put.spd.iec958
$iecset -c 4 audio on

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Viorel Suman <viorel.suman@nxp.com>