defconfig: 8084: statically compile coresight event module

Statically compile the coresight event module to eliminate the
need to manually insert it and also for easier post-process parsing
of the collected trace.

Change-Id: I3097fa6b2173e7a272a273c931d04cdc44b93130
Signed-off-by: Sarang Joshi <spjoshi@codeaurora.org>