Revert "init: Kconfig: Don't force DEBUG_KERNEL"

This reverts commit 3c9388bac3170c351ad10c2b029ba8ff814d1787.
Revert "lib: Kconfig.debug: Don't force DEBUG_BUGVERBOSE"

This reverts commit 7f8f9a689c69fadbbcf6371813ab7e785c8c7ac3.
Revert "msm-pm: Include linux/sched.h"

This reverts commit 0cf9efb6602d59c6fbbffb311f0e27d28400dc4f.
hammerhead_defconfig: Re-enable all the debugging