Use properties for various userspace reboot timeouts

Test: adb reboot userspace
Bug: 146560409
Change-Id: I62408f0e59622c2dab1245897c3057d02c5716a9
Merged-In: I62408f0e59622c2dab1245897c3057d02c5716a9
(cherry picked from commit 9e6588dc95d9a9efd11a9d423e4551671eb8e65e)
1 file changed