bluetooth: bluesleep: add suspend and resume

suspend and resume function() to avoid uart
api call when uart driver is not resumed.

bug 863564

Reviewed-on: http://git-master/r/48716
Reviewed-by: Rakesh Goyal <rgoyal@nvidia.com>
Tested-by: Rakesh Goyal <rgoyal@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Tested-by: Bharat Nihalani <bnihalani@nvidia.com>

Change-Id: I036260f244b2067200050fd5252d91ec23518b86
bluetooth: bluesleep: workaround to enable bluesleep functionality

Enable_irq_wake function is returning error while registering bank
irqs. Commenting out enable_irq_wake,disable_irq_wake function will
not affect bluesleep functionality except wake-on-bluethooth.

Bug 890309

Reviewed-on: http://git-master/r/61090
Reviewed-by: Om Prakash Singh <omp@nvidia.com>
Tested-by: Om Prakash Singh <omp@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>

Change-Id: I25e03331ee3cd228669520c2c6db9aabe07920a7