platform/x86: dell-laptop: Use bool in struct quirk_entry for true/false fields

In struct quirk_entry some boolean fields used int, some u8 type. Change
them all to bool type.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>