drm_hwcomposer: Fix EDID fetch from DRM
EDID fetch procedure consist of two steps:
- get appropriate blob_id
- fetch EDID blob using blob_id Those steps should be done sequentially, in other case drivers can update EDID and blob_id won't be actual.
Signed-off-by: Andrii Chepurnyi andrii_chepurnyi@epam.com