PM: sleep: Use bool for all 1-bit fields in struct dev_pm_info

For some 1-bit fields in struct dev_pm_info the data type is bool, while
for some other 1-bit fields in there it is unsigned int, and these
differences are somewhat arbitrary.

For consistency, change the data type of the latter to bool, so that all
of the 1-bit fields in struct dev_pm_info fields are bool.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>