Convert dev_xxxx(ohci->card.device, ...) log functions to
ohci_xxxx(ohci, ...).

[Stefan R:  Peter argues that this increases readability of the code.]
[Stefan R:  changed whitespace]
Signed-off-by: NPeter Hurley <peter@hurleysoftware.com>
Signed-off-by: NStefan Richter <stefanr@s5r6.in-berlin.de>