msm: ipa3: supporting hibernate & cleanup unused deepsleep API's

Adding changes to listen for new PM driver events to support
hibernate feature. Also, in 5.15 kernel, deepsleep & hibernate
entry/exit SSR API's are becoming same as regular SSR usecases.
So, cleaning up the unused deepsleep API's accordingly.

Change-Id: Ie8d901f824b586bbb7a5e61a1cdc877cd14eb1d0
Signed-off-by: Jagadeesh Ponduru <quic_jponduru@quicinc.com>
3 files changed