staging: wilc1000: drop explicit conversion to bool

As the expression evaluates to a boolean anyway (relational and logical
operators) conversion with the ternary operator is not needed here as
coccinelle notes (boolconv.cocci)

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>