For validation purpose add debugfs for LOBF.

v1: Initial version.
v2: Add aux-wake/less info along with lobf status. [Jouni]
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240529200742.1694401-7-animesh.manna@intel.com