Staging: wilc1000: Remove boolean comparision

This patch is to the host_interface.c file that fixes up following
warning reported by coccicheck:

WARNING: Comparison to bool

Boolean tests do not need explicit comparison to true or false

Signed-off-by: Punit Vara <punitvara@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>