staging: vt6655: Use pr_* functions instead of printk

Lots of printk are used in vt6655, replace them with the pr_*
equivalent.

Signed-off-by: Guillaume Clement <gclement@baobob.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/vt6655/card.c
Simple merge

diff --cc drivers/staging/vt6655/device_cfg.h
Simple merge

diff --cc drivers/staging/vt6655/device_main.c
Simple merge

diff --cc drivers/staging/vt6655/ioctl.c
Simple merge

diff --cc drivers/staging/vt6655/iwctl.c
Simple merge

diff --cc drivers/staging/vt6655/vntwifi.c
Simple merge

diff --cc drivers/staging/vt6655/wcmd.c
Simple merge

diff --cc drivers/staging/vt6655/wmgr.c
Simple merge

diff --cc drivers/staging/vt6655/wpactl.c
Simple merge