drivers: perf: arm_pmuv3: Add branch type filtering

This stores branch type information in the captured branch entry regardless
whether the event had requested for that or not. This adds a new element
called br_type_mask in arm64_perf_task_context which tracks possible branch
types that might be generated with event's requested filters.

Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>