diag: Propagate mask info to slave processor

From 8960 onwards, application processor handles master diag. Other
slave processors can come up on different time. This change will
update each slave processor with latest mask info when it comes up.

Also each time, any PC tool tries to change masks, application processor
will propagate this new mask info to the peripherals. Now, this mask
updation tasks need to be delayed. Hence, such tasks cannot be put on
regular work queue. Thus, this change also adds a new work queue for such
tasks.

This feature also requires latest build time masks on apps processor. Thus,
updated the build time masks as well.

Change-Id: I5120c3d507230d3209773cc9f929a8f2f0bf0a3d
Signed-off-by: Shalabh Jain <shalabhj@codeaurora.org>