Revert "Update kernel."

This reverts commit c9b0bae5b9feec59e9cef6d364cca2df00986a71.
Fix clock and date/alarm display on lockscreen

Reduce the size of keyguard's status view so the date and alarm is visible on the lockscreen.
Value selected is the maximum size the security view can be before it starts to overlap the largest lockscreen widget (Digital Clock with the bold hour and date).
Add bluetooth build cfg
Update init.herring.rc: Bluedroid has replaced system/bluetooth

From Google commit comment:

ISSUE 6849488 Bluedroid stack, remove system/bluetooth.

remove system/bluetooth dependency.

bug 6849488

Change was committed to grouper, tilapia and tuna
Set default backup transport to Google account

Set the default backup transport to allow backing up to Google account.
Revert "Fix clock and date/alarm display on lockscreen"

This reverts commit ce2a84a91242494f27a0e74ee42509bd8bcab800.