Drivers:iio:adc:ti_am335x_adc remove comparison to bool

This is the patch to the file ti_am335x_adc.c
which fixes the following coccinelle warning:

WARNING: Comparison to bool
Signed-off-by: Venkat Prashanth B U <venkat.prashanth2498@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/iio/adc/ti_am335x_adc.c

@@ -523,7 +523,7 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
 	}
 	am335x_tsc_se_adc_done(adc_dev->mfd_tscadc);
 
-	if (found == false)
+	if (!found)
 		ret =  -EBUSY;
 
 err_unlock: