staging: usbip: replace usbip_u{dbg,err,info} and printk with dev_ and pr_

This switches all of the usbip_u{dbg,err,info} and printk statements to
dev_<level>, if possible, or pr_<level> macros. And removes a few
unnecessary debug statements.

Signed-off-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --cc drivers/staging/usbip/stub_dev.c
Simple merge

diff --cc drivers/staging/usbip/stub_main.c
Simple merge

diff --cc drivers/staging/usbip/stub_rx.c
Simple merge

diff --cc drivers/staging/usbip/stub_tx.c
Simple merge

diff --cc drivers/staging/usbip/usbip_common.c
Simple merge

diff --cc drivers/staging/usbip/usbip_common.h
Simple merge

diff --cc drivers/staging/usbip/usbip_event.c
Simple merge

diff --cc drivers/staging/usbip/vhci_hcd.c
Simple merge

diff --cc drivers/staging/usbip/vhci_rx.c
Simple merge

diff --cc drivers/staging/usbip/vhci_sysfs.c
Simple merge

diff --cc drivers/staging/usbip/vhci_tx.c
Simple merge