trace: events: fix trace events used by secure cma allocations

Fix the compilation issues for the secure cma ftrace events of ION
subsystem introduced by Iee79c01235cd ("ion: Snapshot for 4.12 kernel
upgrade")

Change-Id: I389a8645316301841ec98a004abd92539fdb86cb
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>