coresight: etm4x: sysfs: use smp cross read for trcpdsr
Use smp cross call for trcpdsr to avoid the register access issue
when read trcpdsr.
Change-Id: Id2b71bfa90a302182bb6e21a185de5acf66d769b
Signed-off-by:
Mao Jinlong <jinlmao@codeaurora.org>
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