py: db.py: Rename argument to event handlers to avoid shadowing
py: db.py: Rename argument to event handlers to avoid shadowing

The first argument to the key event handlers bears the same name as the
global variable that identifies the connector. Rename it to fileobj
which, in addition to being more descriptive, avoids shadowing the
global variable.

Signed-off-by: Laurent Pinchart <3ded2f39a78f0d7044839546f95841842b4d7c96@ideasonboard.com>

tomba/kmsxx,tomba/kmsxx,tomba/kmsxx,tomba/kmsxx