Port Slide Unlock delay from CM (1/2)

Change-Id: I2d7e547d4bffa77d32550b55a53e670e01d2fa8c
Fix lock screen timeouts

- Currently, if slide lock delays are enabled and then user switches to a secure lock screen, the slide delays were still being utilized
- This patch fixes the logic around whether to utilize the slide delay setting

Change-Id: I44d8b8dcb04468ca069c7967a753038090d34133