Get rid of the following warning:
drivers/usb/musb/tusb6010.c: In function 'tusb_otg_ints':
drivers/usb/musb/tusb6010.c:716: warning: unused variable 'devctl'
Signed-off-by: Felipe Balbi <felipe.lima@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>