Staging: ft1000: Fix assignment of bool to non-0/1 constant in ft1000_usb.c

This patch fixes the following coccinelle error in ft1000-usb/ft1000_usb.c-
drivers/staging/ft1000/ft1000-usb/ft1000_usb.c:50:4-18: ERROR: Assignment of bool to non-0/1 constant
drivers/staging/ft1000/ft1000-usb/ft1000_usb.c:174:1-15: ERROR: Assignment of bool to non-0/1 constant
drivers/staging/ft1000/ft1000-usb/ft1000_usb.c:39:12-26: ERROR: Assignment of bool to non-0/1 constant

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>