arm64: dts: ti: k3*: Fixup PMU compatibility to be CPU specific

We can use CPU specific pmu configuration to expose the appropriate
CPU specific events rather than just the basic generic pmuv3 perf
events.

Reported-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Tero Kristo <kristo@kernel.org>
Link: https://lore.kernel.org/r/20210120195145.32259-1-nm@ti.com