data-kernel: EMAC: Handle PTP clock while suspend/resume

- Disabled ptp in suspend mode.
- Enabled ptp in resume mode

Change-Id: Ic0526c45ce309611b0d47f6520a918f5d9cf3969
Acked-by: Lakshit Tyagi <ltyagi@qti.qualcomm.com>
Signed-off-by: Mohammed Javid <mjavid@codeaurora.org>