soc: qcom: smp2p: Update SMP2P item without sending IRQ

Every update to the SMP2P item by the local processor triggers a
interrupt to the remote processor to notify about the item change.
Interrupting the remote processor is not required in some special cases
like DSPS processor reading the APPS processor suspend state.

Modify the SMP2P public API to support the SMP2P item update without
triggering interrupt to the remote processor.

Change-Id: Ifb9ae4113ae39bbc1582684d8546524144249eee
Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>