drm/imx: imx-ldb: reduce scope of edid_len

The edid_len variable is never used again. Use a local variable instead
of storing it in the device structure.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Philipp Zabel 2020-07-15 10:18:10 +02:00
commit 754e0b5803