perf arm-spe: Don't set data source if it's not a memory operation

Except for memory load and store operations, ARM SPE records also can
support other operation types, bug when set the data source field the
current code assumes a record is a either load operation or store
operation, this leads to wrongly synthesize memory samples.

This patch strictly checks the record operation type, it only sets data
source only for the operation types ARM_SPE_LD and ARM_SPE_ST,
otherwise, returns zero for data source.  Therefore, we can synthesize
memory samples only when data source is a non-zero value, the function
arm_spe__is_memory_event() is useless and removed.

Fixes: e55ed3423c1bb29f ("perf arm-spe: Synthesize memory event")
Reviewed-by: Ali Saidi <[email protected]>
Reviewed-by: German Gomez <[email protected]>
Signed-off-by: Leo Yan <[email protected]>
Tested-by: Ali Saidi <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: [email protected]
Cc: Andrew Kilroy <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Li Huafei <[email protected]>
Cc: [email protected]
Cc: Mark Rutland <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nick Forrington <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Will Deacon <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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