staging: vt6655: delete explicit comparison to bool

This patch fixes all bool tests by deleting the comparison. Most of
these were detected using coccinelle and silence the following type of
coccinelle warnings for drivers/staging/vt6655/bssdb.c file:

WARNING: Comparison to bool

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>