media: TDA1997x: enable EDID support

[ Upstream commit ea3e1c36e38810427485f06c2becc1f29e54521d ]

Without this patch, the TDA19971 chip's EDID is inactive.
EDID never worked with this driver, it was all tested with HDMI signal
sources which don't need EDID support.

Signed-off-by: Krzysztof Halasa <khalasa@piap.pl>
Fixes: 9ac0038d ("media: i2c: Add TDA1997x HDMI receiver driver")
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>