Staging: vt6655: Remove unnecessary equality checks in rxtx.c

The unnecessary equality checks for bool variable are removed in rxtx.c.
These changes were detected with the help of coccinelle tool

Signed-off-by: Harisangam Sharvari <sharisan@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>